diff --git a/package.json b/package.json
index f2e1135..8b9b822 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,6 @@
   "devDependencies": {
     "@vuepress/plugin-back-to-top": "^1.2.0",
     "git-update-ghpages": "^1.3.0",
-    "vuepress": "^1.2.0"
+    "vuepress": "^1.9.9"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index b5d52a9..cff8754 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -861,6 +861,49 @@
   dependencies:
     defer-to-connect "^1.0.1"
 
+"@types/body-parser@*":
+  version "1.19.2"
+  resolved "https://registry.yarnpkg.com/@types/body-parser/-/body-parser-1.19.2.tgz#aea2059e28b7658639081347ac4fab3de166e6f0"
+  integrity sha512-ALYone6pm6QmwZoAgeyNksccT9Q4AWZQ6PvfwR37GT6r6FWUPguq6sUmNGSMV2Wr761oQoBxwGGa6DR5o1DC9g==
+  dependencies:
+    "@types/connect" "*"
+    "@types/node" "*"
+
+"@types/connect-history-api-fallback@*":
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/@types/connect-history-api-fallback/-/connect-history-api-fallback-1.5.0.tgz#9fd20b3974bdc2bcd4ac6567e2e0f6885cb2cf41"
+  integrity sha512-4x5FkPpLipqwthjPsF7ZRbOv3uoLUFkTA9G9v583qi4pACvq0uTELrB8OLUzPWUI4IJIyvM85vzkV1nyiI2Lig==
+  dependencies:
+    "@types/express-serve-static-core" "*"
+    "@types/node" "*"
+
+"@types/connect@*":
+  version "3.4.35"
+  resolved "https://registry.yarnpkg.com/@types/connect/-/connect-3.4.35.tgz#5fcf6ae445e4021d1fc2219a4873cc73a3bb2ad1"
+  integrity sha512-cdeYyv4KWoEgpBISTxWvqYsVy444DOqehiF3fM3ne10AmJ62RSyNkUnxMJXHQWRQQX2eR94m5y1IZyDwBjV9FQ==
+  dependencies:
+    "@types/node" "*"
+
+"@types/express-serve-static-core@*", "@types/express-serve-static-core@^4.17.33":
+  version "4.17.35"
+  resolved "https://registry.yarnpkg.com/@types/express-serve-static-core/-/express-serve-static-core-4.17.35.tgz#c95dd4424f0d32e525d23812aa8ab8e4d3906c4f"
+  integrity sha512-wALWQwrgiB2AWTT91CB62b6Yt0sNHpznUXeZEcnPU3DRdlDIz74x8Qg1UUYKSVFi+va5vKOLYRBI1bRKiLLKIg==
+  dependencies:
+    "@types/node" "*"
+    "@types/qs" "*"
+    "@types/range-parser" "*"
+    "@types/send" "*"
+
+"@types/express@*":
+  version "4.17.17"
+  resolved "https://registry.yarnpkg.com/@types/express/-/express-4.17.17.tgz#01d5437f6ef9cfa8668e616e13c2f2ac9a491ae4"
+  integrity sha512-Q4FmmuLGBG58btUnfS1c1r/NQdlp3DMfGDGig8WhfpA2YRUtEkxAjkZb0yvplJGYdF1fsQ81iMDcH24sSCNC/Q==
+  dependencies:
+    "@types/body-parser" "*"
+    "@types/express-serve-static-core" "^4.17.33"
+    "@types/qs" "*"
+    "@types/serve-static" "*"
+
 "@types/glob@^7.1.1":
   version "7.1.3"
   resolved "https://registry.yarnpkg.com/@types/glob/-/glob-7.1.3.tgz#e6ba80f36b7daad2c685acd9266382e68985c183"
@@ -869,11 +912,58 @@
     "@types/minimatch" "*"
     "@types/node" "*"
 
+"@types/highlight.js@^9.7.0":
+  version "9.12.4"
+  resolved "https://registry.yarnpkg.com/@types/highlight.js/-/highlight.js-9.12.4.tgz#8c3496bd1b50cc04aeefd691140aa571d4dbfa34"
+  integrity sha512-t2szdkwmg2JJyuCM20e8kR2X59WCE5Zkl4bzm1u1Oukjm79zpbiAv+QjnwLnuuV0WHEcX2NgUItu0pAMKuOPww==
+
+"@types/http-errors@*":
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/@types/http-errors/-/http-errors-2.0.1.tgz#20172f9578b225f6c7da63446f56d4ce108d5a65"
+  integrity sha512-/K3ds8TRAfBvi5vfjuz8y6+GiAYBZ0x4tXv1Av6CWBWn0IlADc+ZX9pMq7oU0fNQPnBwIZl3rmeLp6SBApbxSQ==
+
+"@types/http-proxy@^1.17.5":
+  version "1.17.11"
+  resolved "https://registry.yarnpkg.com/@types/http-proxy/-/http-proxy-1.17.11.tgz#0ca21949a5588d55ac2b659b69035c84bd5da293"
+  integrity sha512-HC8G7c1WmaF2ekqpnFq626xd3Zz0uvaqFmBJNRZCGEZCXkvSdJoNFn/8Ygbd9fKNQj8UzLdCETaI0UWPAjK7IA==
+  dependencies:
+    "@types/node" "*"
+
 "@types/json-schema@^7.0.5":
   version "7.0.7"
   resolved "https://registry.yarnpkg.com/@types/json-schema/-/json-schema-7.0.7.tgz#98a993516c859eb0d5c4c8f098317a9ea68db9ad"
   integrity sha512-cxWFQVseBm6O9Gbw1IWb8r6OS4OhSt3hPZLkFApLjM8TEXROBuQGLAH2i2gZpcXdLBIrpXuTDhH7Vbm1iXmNGA==
 
+"@types/linkify-it@*":
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/@types/linkify-it/-/linkify-it-3.0.2.tgz#fd2cd2edbaa7eaac7e7f3c1748b52a19143846c9"
+  integrity sha512-HZQYqbiFVWufzCwexrvh694SOim8z2d+xJl5UNamcvQFejLY/2YUtzXHYi3cHdI7PMlS8ejH2slRAOJQ32aNbA==
+
+"@types/markdown-it@^10.0.0":
+  version "10.0.3"
+  resolved "https://registry.yarnpkg.com/@types/markdown-it/-/markdown-it-10.0.3.tgz#a9800d14b112c17f1de76ec33eff864a4815eec7"
+  integrity sha512-daHJk22isOUvNssVGF2zDnnSyxHhFYhtjeX4oQaKD6QzL3ZR1QSgiD1g+Q6/WSWYVogNXYDXODtbgW/WiFCtyw==
+  dependencies:
+    "@types/highlight.js" "^9.7.0"
+    "@types/linkify-it" "*"
+    "@types/mdurl" "*"
+    highlight.js "^9.7.0"
+
+"@types/mdurl@*":
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/@types/mdurl/-/mdurl-1.0.2.tgz#e2ce9d83a613bacf284c7be7d491945e39e1f8e9"
+  integrity sha512-eC4U9MlIcu2q0KQmXszyn5Akca/0jrQmwDRgpAMJai7qBWq4amIQhZyNau4VYGtCeALvW1/NtjzJJ567aZxfKA==
+
+"@types/mime@*":
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/@types/mime/-/mime-3.0.1.tgz#5f8f2bca0a5863cb69bc0b0acd88c96cb1d4ae10"
+  integrity sha512-Y4XFY5VJAuw0FgAqPNd6NNoV44jbq9Bz2L7Rh/J6jLTiHBSBJa9fxqQIvkIld4GsoDOcCbvzOUAbLPsSKKg+uA==
+
+"@types/mime@^1":
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/@types/mime/-/mime-1.3.2.tgz#93e25bf9ee75fe0fd80b594bc4feb0e862111b5a"
+  integrity sha512-YATxVxgRqNH6nHEIsvg6k2Boc1JHI9ZbH5iWFFv/MTkchz3b1ieGDa5T0a9RznNdI0KhVbdbWSN+KWWrQZRxTw==
+
 "@types/minimatch@*":
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/@types/minimatch/-/minimatch-3.0.3.tgz#3dca0e3f33b200fc7d1139c0cd96c1268cadfd9d"
@@ -889,6 +979,82 @@
   resolved "https://registry.yarnpkg.com/@types/q/-/q-1.5.4.tgz#15925414e0ad2cd765bfef58842f7e26a7accb24"
   integrity sha512-1HcDas8SEj4z1Wc696tH56G8OlRaH/sqZOynNNB+HF0WOeXPaxTtbYzJY2oEfiUxjSKjhCKr+MvR7dCHcEelug==
 
+"@types/qs@*":
+  version "6.9.7"
+  resolved "https://registry.yarnpkg.com/@types/qs/-/qs-6.9.7.tgz#63bb7d067db107cc1e457c303bc25d511febf6cb"
+  integrity sha512-FGa1F62FT09qcrueBA6qYTrJPVDzah9a+493+o2PCXsesWHIn27G98TsSMs3WPNbZIEj4+VJf6saSFpvD+3Zsw==
+
+"@types/range-parser@*":
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/@types/range-parser/-/range-parser-1.2.4.tgz#cd667bcfdd025213aafb7ca5915a932590acdcdc"
+  integrity sha512-EEhsLsD6UsDM1yFhAvy0Cjr6VwmpMWqFBCb9w07wVugF7w9nfajxLuVmngTIpgS6svCnm6Vaw+MZhoDCKnOfsw==
+
+"@types/send@*":
+  version "0.17.1"
+  resolved "https://registry.yarnpkg.com/@types/send/-/send-0.17.1.tgz#ed4932b8a2a805f1fe362a70f4e62d0ac994e301"
+  integrity sha512-Cwo8LE/0rnvX7kIIa3QHCkcuF21c05Ayb0ZfxPiv0W8VRiZiNW/WuRupHKpqqGVGf7SUA44QSOUKaEd9lIrd/Q==
+  dependencies:
+    "@types/mime" "^1"
+    "@types/node" "*"
+
+"@types/serve-static@*":
+  version "1.15.2"
+  resolved "https://registry.yarnpkg.com/@types/serve-static/-/serve-static-1.15.2.tgz#3e5419ecd1e40e7405d34093f10befb43f63381a"
+  integrity sha512-J2LqtvFYCzaj8pVYKw8klQXrLLk7TBZmQ4ShlcdkELFKGwGMfevMLneMMRkMgZxotOD9wg497LpC7O8PcvAmfw==
+  dependencies:
+    "@types/http-errors" "*"
+    "@types/mime" "*"
+    "@types/node" "*"
+
+"@types/source-list-map@*":
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/@types/source-list-map/-/source-list-map-0.1.2.tgz#0078836063ffaf17412349bba364087e0ac02ec9"
+  integrity sha512-K5K+yml8LTo9bWJI/rECfIPrGgxdpeNbj+d53lwN4QjW1MCwlkhUms+gtdzigTeUyBr09+u8BwOIY3MXvHdcsA==
+
+"@types/tapable@^1":
+  version "1.0.8"
+  resolved "https://registry.yarnpkg.com/@types/tapable/-/tapable-1.0.8.tgz#b94a4391c85666c7b73299fd3ad79d4faa435310"
+  integrity sha512-ipixuVrh2OdNmauvtT51o3d8z12p6LtFW9in7U79der/kwejjdNchQC5UMn5u/KxNoM7VHHOs/l8KS8uHxhODQ==
+
+"@types/uglify-js@*":
+  version "3.17.1"
+  resolved "https://registry.yarnpkg.com/@types/uglify-js/-/uglify-js-3.17.1.tgz#e0ffcef756476410e5bce2cb01384ed878a195b5"
+  integrity sha512-GkewRA4i5oXacU/n4MA9+bLgt5/L3F1mKrYvFGm7r2ouLXhRKjuWwo9XHNnbx6WF3vlGW21S3fCvgqxvxXXc5g==
+  dependencies:
+    source-map "^0.6.1"
+
+"@types/webpack-dev-server@^3":
+  version "3.11.6"
+  resolved "https://registry.yarnpkg.com/@types/webpack-dev-server/-/webpack-dev-server-3.11.6.tgz#d8888cfd2f0630203e13d3ed7833a4d11b8a34dc"
+  integrity sha512-XCph0RiiqFGetukCTC3KVnY1jwLcZ84illFRMbyFzCcWl90B/76ew0tSqF46oBhnLC4obNDG7dMO0JfTN0MgMQ==
+  dependencies:
+    "@types/connect-history-api-fallback" "*"
+    "@types/express" "*"
+    "@types/serve-static" "*"
+    "@types/webpack" "^4"
+    http-proxy-middleware "^1.0.0"
+
+"@types/webpack-sources@*":
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/@types/webpack-sources/-/webpack-sources-3.2.0.tgz#16d759ba096c289034b26553d2df1bf45248d38b"
+  integrity sha512-Ft7YH3lEVRQ6ls8k4Ff1oB4jN6oy/XmU6tQISKdhfh+1mR+viZFphS6WL0IrtDOzvefmJg5a0s7ZQoRXwqTEFg==
+  dependencies:
+    "@types/node" "*"
+    "@types/source-list-map" "*"
+    source-map "^0.7.3"
+
+"@types/webpack@^4":
+  version "4.41.33"
+  resolved "https://registry.yarnpkg.com/@types/webpack/-/webpack-4.41.33.tgz#16164845a5be6a306bcbe554a8e67f9cac215ffc"
+  integrity sha512-PPajH64Ft2vWevkerISMtnZ8rTs4YmRbs+23c402J0INmxDKCrhZNvwZYtzx96gY2wAtXdrK1BS2fiC8MlLr3g==
+  dependencies:
+    "@types/node" "*"
+    "@types/tapable" "^1"
+    "@types/uglify-js" "*"
+    "@types/webpack-sources" "*"
+    anymatch "^3.0.0"
+    source-map "^0.6.0"
+
 "@vue/babel-helper-vue-jsx-merge-props@^1.2.1":
   version "1.2.1"
   resolved "https://registry.yarnpkg.com/@vue/babel-helper-vue-jsx-merge-props/-/babel-helper-vue-jsx-merge-props-1.2.1.tgz#31624a7a505fb14da1d58023725a4c5f270e6a81"
@@ -1027,20 +1193,22 @@
   optionalDependencies:
     prettier "^1.18.2"
 
-"@vuepress/core@1.8.2":
-  version "1.8.2"
-  resolved "https://registry.yarnpkg.com/@vuepress/core/-/core-1.8.2.tgz#4f5bafc894691bfea4146294a582a129483daf2a"
-  integrity sha512-lh9BLC06k9s0wxTuWtCkiNj49fkbW87enp0XSrFZHEoyDGSGndQjZmMMErcHc5Hx7nrW1nzc33sPH1NNtJl0hw==
+"@vuepress/core@1.9.9":
+  version "1.9.9"
+  resolved "https://registry.yarnpkg.com/@vuepress/core/-/core-1.9.9.tgz#aa8bc4497fcbb6aab9c1e290944d422edeb20495"
+  integrity sha512-Ekgu409ZSgvAV9n14F3DaEWtgkwrEicg1nWs0gbxGgUCdREeX/7rwxSfKwWwBjCwfCUKR2L3+6pXGjzxex0t+g==
   dependencies:
     "@babel/core" "^7.8.4"
     "@vue/babel-preset-app" "^4.1.2"
-    "@vuepress/markdown" "1.8.2"
-    "@vuepress/markdown-loader" "1.8.2"
-    "@vuepress/plugin-last-updated" "1.8.2"
-    "@vuepress/plugin-register-components" "1.8.2"
-    "@vuepress/shared-utils" "1.8.2"
+    "@vuepress/markdown" "1.9.9"
+    "@vuepress/markdown-loader" "1.9.9"
+    "@vuepress/plugin-last-updated" "1.9.9"
+    "@vuepress/plugin-register-components" "1.9.9"
+    "@vuepress/shared-utils" "1.9.9"
+    "@vuepress/types" "1.9.9"
     autoprefixer "^9.5.1"
     babel-loader "^8.0.4"
+    bundle-require "2.1.8"
     cache-loader "^3.0.0"
     chokidar "^2.0.3"
     connect-history-api-fallback "^1.5.0"
@@ -1048,6 +1216,7 @@
     core-js "^3.6.4"
     cross-spawn "^6.0.5"
     css-loader "^2.1.1"
+    esbuild "0.14.7"
     file-loader "^3.0.1"
     js-yaml "^3.13.1"
     lru-cache "^5.1.1"
@@ -1071,21 +1240,21 @@
     webpack-merge "^4.1.2"
     webpackbar "3.2.0"
 
-"@vuepress/markdown-loader@1.8.2":
-  version "1.8.2"
-  resolved "https://registry.yarnpkg.com/@vuepress/markdown-loader/-/markdown-loader-1.8.2.tgz#b2a58291a967f2bbe0af6e58f9542f5911879233"
-  integrity sha512-mWzFXikCUcAN/chpKkqZpRYKdo0312hMv8cBea2hvrJYV6y4ODB066XKvXN8JwOcxuCjxWYJkhWGr+pXq1oTtw==
+"@vuepress/markdown-loader@1.9.9":
+  version "1.9.9"
+  resolved "https://registry.yarnpkg.com/@vuepress/markdown-loader/-/markdown-loader-1.9.9.tgz#b44e446a04808b9aef503d32fdcbc1e7fb7afef4"
+  integrity sha512-nyY+sytuQaDLEIk6Yj9JFUfSQpe9/sz30xQFkGCYqi0lQTRGQM6IcRDgfcTS7b25A0qRlwpDGBfKQiGGMZKSfg==
   dependencies:
-    "@vuepress/markdown" "1.8.2"
+    "@vuepress/markdown" "1.9.9"
     loader-utils "^1.1.0"
     lru-cache "^5.1.1"
 
-"@vuepress/markdown@1.8.2":
-  version "1.8.2"
-  resolved "https://registry.yarnpkg.com/@vuepress/markdown/-/markdown-1.8.2.tgz#50ea5a1962591a436b26d1aa2b111df37eb9ea8a"
-  integrity sha512-zznBHVqW+iBkznF/BO/GY9RFu53khyl0Ey0PnGqvwCJpRLNan6y5EXgYumtjw2GSYn5nDTTALYxtyNBdz64PKg==
+"@vuepress/markdown@1.9.9":
+  version "1.9.9"
+  resolved "https://registry.yarnpkg.com/@vuepress/markdown/-/markdown-1.9.9.tgz#1f582e6302e91a09491ca7bd0c8bcf9683140e03"
+  integrity sha512-JzFdBdGe5aoiKSaEgF+h3JLDXNVfWPI5DJWXrIt7rhhkMJesF6HowIznPLdXqukzHfXHcPvo9oQ4o6eT0YmVGA==
   dependencies:
-    "@vuepress/shared-utils" "1.8.2"
+    "@vuepress/shared-utils" "1.9.9"
     markdown-it "^8.4.1"
     markdown-it-anchor "^5.0.2"
     markdown-it-chain "^1.3.0"
@@ -1093,11 +1262,12 @@
     markdown-it-table-of-contents "^0.4.0"
     prismjs "^1.13.0"
 
-"@vuepress/plugin-active-header-links@1.8.2":
-  version "1.8.2"
-  resolved "https://registry.yarnpkg.com/@vuepress/plugin-active-header-links/-/plugin-active-header-links-1.8.2.tgz#0cb9b29c826dd97d35357a9b09c962ef782cb793"
-  integrity sha512-JmXAQg8D7J8mcKe2Ue3BZ9dOCzJMJXP4Cnkkc/IrqfDg0ET0l96gYWZohCqlvRIWt4f0VPiFAO4FLYrW+hko+g==
+"@vuepress/plugin-active-header-links@1.9.9":
+  version "1.9.9"
+  resolved "https://registry.yarnpkg.com/@vuepress/plugin-active-header-links/-/plugin-active-header-links-1.9.9.tgz#fad96c550bea0b204fe16266cff1405e8636c1e1"
+  integrity sha512-lTnIhbuALjOjFts33jJD8r4ScNBxnZ6MtmePKEwvYlC3J9uvngs1Htpb1JzLEX9QCydt+bhLmZ92bTXn/PdTpg==
   dependencies:
+    "@vuepress/types" "1.9.9"
     lodash.debounce "^4.0.8"
 
 "@vuepress/plugin-back-to-top@^1.2.0":
@@ -1107,33 +1277,53 @@
   dependencies:
     lodash.debounce "^4.0.8"
 
-"@vuepress/plugin-last-updated@1.8.2":
-  version "1.8.2"
-  resolved "https://registry.yarnpkg.com/@vuepress/plugin-last-updated/-/plugin-last-updated-1.8.2.tgz#7ce689f8d5050cf0213949bc2e5aa879c09ff4b1"
-  integrity sha512-pYIRZi52huO9b6HY3JQNPKNERCLzMHejjBRt9ekdnJ1xhLs4MmRvt37BoXjI/qzvXkYtr7nmGgnKThNBVRTZuA==
+"@vuepress/plugin-last-updated@1.9.9":
+  version "1.9.9"
+  resolved "https://registry.yarnpkg.com/@vuepress/plugin-last-updated/-/plugin-last-updated-1.9.9.tgz#a7cb5f39b2793c8d113de08a514c316c26cc38c1"
+  integrity sha512-MV4csmM0/lye83VtkOc+b8fs0roi7mvE7BmCCOE39Z6t8nv/ZmEPOwKeHD0+hXPT+ZfoATYvDcsYU7uxbdw0Pw==
   dependencies:
+    "@vuepress/types" "1.9.9"
     cross-spawn "^6.0.5"
 
-"@vuepress/plugin-nprogress@1.8.2":
-  version "1.8.2"
-  resolved "https://registry.yarnpkg.com/@vuepress/plugin-nprogress/-/plugin-nprogress-1.8.2.tgz#dc6c082925420c8c59ecb7fc2d4a9401f6d4664a"
-  integrity sha512-3TOBee2NM3WLr1tdjDTGfrAMggjN+OlEPyKyv8FqThsVkDYhw48O3HwqlThp9KX7UbL3ExxIFBwWRFLC+kYrdw==
+"@vuepress/plugin-nprogress@1.9.9":
+  version "1.9.9"
+  resolved "https://registry.yarnpkg.com/@vuepress/plugin-nprogress/-/plugin-nprogress-1.9.9.tgz#4fee4818ddc8ddc6a1778b7f2b74ab784c90915d"
+  integrity sha512-+3fLxjwTLH8MeU54E7i1ovRu9KzBom2lvSeUsu9B8PuLyrETAqW7Pe1H66awEEALEe0ZnnEU4d7SeVe9ljsLAQ==
   dependencies:
+    "@vuepress/types" "1.9.9"
     nprogress "^0.2.0"
 
-"@vuepress/plugin-register-components@1.8.2":
-  version "1.8.2"
-  resolved "https://registry.yarnpkg.com/@vuepress/plugin-register-components/-/plugin-register-components-1.8.2.tgz#2fb45a68b0a1efb8822670d95c3b231a2d0eb74d"
-  integrity sha512-6SUq3nHFMEh9qKFnjA8QnrNxj0kLs7+Gspq1OBU8vtu0NQmSvLFZVaMV7pzT/9zN2nO5Pld5qhsUJv1g71MrEA==
+"@vuepress/plugin-register-components@1.9.9":
+  version "1.9.9"
+  resolved "https://registry.yarnpkg.com/@vuepress/plugin-register-components/-/plugin-register-components-1.9.9.tgz#95be133d6ef33c03f410caae8eb1fabdf27a7999"
+  integrity sha512-tddnAiSmJsIWWPzE7TcbGU8xzndXf4a8i4BfIev2QzSUnIOQFZDGXUAsCkw4/f9N9UFxQSObjFPzTeUUxb7EvA==
   dependencies:
-    "@vuepress/shared-utils" "1.8.2"
+    "@vuepress/shared-utils" "1.9.9"
+    "@vuepress/types" "1.9.9"
 
-"@vuepress/plugin-search@1.8.2":
-  version "1.8.2"
-  resolved "https://registry.yarnpkg.com/@vuepress/plugin-search/-/plugin-search-1.8.2.tgz#74b92f663acf6b4560e15dc0442a84c4e874e206"
-  integrity sha512-JrSJr9o0Kar14lVtZ4wfw39pplxvvMh8vDBD9oW09a+6Zi/4bySPGdcdaqdqGW+OHSiZNvG+6uyfKSBBBqF6PA==
+"@vuepress/plugin-search@1.9.9":
+  version "1.9.9"
+  resolved "https://registry.yarnpkg.com/@vuepress/plugin-search/-/plugin-search-1.9.9.tgz#d30804b86f9b7f54b3db0b987a288433be3cfd7b"
+  integrity sha512-W/FE+YHoXDD4qk2wu5yRMkti271TA4y+7UBMrmCavvVAGrLIRnaZfswRUgIiDlEthBc+Pn8/As/Dy1jFTLBa9A==
+  dependencies:
+    "@vuepress/types" "1.9.9"
+
+"@vuepress/shared-utils@1.9.9":
+  version "1.9.9"
+  resolved "https://registry.yarnpkg.com/@vuepress/shared-utils/-/shared-utils-1.9.9.tgz#f6561ec2264d54e4e459d17678766ffe09f4bfc6"
+  integrity sha512-qhk/7QF5LgMEXhEB1hlqreGFgkz4p2pmaBBNFxnAnYmSwmyO+u/oFOpZLI16QRx9Wg6ekR2ENmByQLxV7y4lJg==
+  dependencies:
+    chalk "^2.3.2"
+    escape-html "^1.0.3"
+    fs-extra "^7.0.1"
+    globby "^9.2.0"
+    gray-matter "^4.0.1"
+    hash-sum "^1.0.2"
+    semver "^6.0.0"
+    toml "^3.0.0"
+    upath "^1.1.0"
 
-"@vuepress/shared-utils@1.8.2", "@vuepress/shared-utils@^1.2.0":
+"@vuepress/shared-utils@^1.2.0":
   version "1.8.2"
   resolved "https://registry.yarnpkg.com/@vuepress/shared-utils/-/shared-utils-1.8.2.tgz#5ec1601f2196aca34ad82eed7c9be2d7948f705b"
   integrity sha512-6kGubc7iBDWruEBUU7yR+sQ++SOhMuvKWvWeTZJKRZedthycdzYz7QVpua0FaZSAJm5/dIt8ymU4WQvxTtZgTQ==
@@ -1148,14 +1338,15 @@
     toml "^3.0.0"
     upath "^1.1.0"
 
-"@vuepress/theme-default@1.8.2":
-  version "1.8.2"
-  resolved "https://registry.yarnpkg.com/@vuepress/theme-default/-/theme-default-1.8.2.tgz#7f474036c752c1f9801b83f68f5c70c092b182b4"
-  integrity sha512-rE7M1rs3n2xp4a/GrweO8EGwqFn3EA5gnFWdVmVIHyr7C1nix+EqjpPQF1SVWNnIrDdQuCw38PqS+oND1K2vYw==
+"@vuepress/theme-default@1.9.9":
+  version "1.9.9"
+  resolved "https://registry.yarnpkg.com/@vuepress/theme-default/-/theme-default-1.9.9.tgz#26f1965e1204445fa617308d3b06f134baab4936"
+  integrity sha512-de0FiOwM/h3rFTBSZK0NNBB117lA/e3IHusU7Xm2XeZRiZ/EE3yvbWclZnbbRNt3YjDMmrWXEW/kBTBxfiMuWQ==
   dependencies:
-    "@vuepress/plugin-active-header-links" "1.8.2"
-    "@vuepress/plugin-nprogress" "1.8.2"
-    "@vuepress/plugin-search" "1.8.2"
+    "@vuepress/plugin-active-header-links" "1.9.9"
+    "@vuepress/plugin-nprogress" "1.9.9"
+    "@vuepress/plugin-search" "1.9.9"
+    "@vuepress/types" "1.9.9"
     docsearch.js "^2.5.2"
     lodash "^4.17.15"
     stylus "^0.54.8"
@@ -1163,6 +1354,15 @@
     vuepress-plugin-container "^2.0.2"
     vuepress-plugin-smooth-scroll "^0.0.3"
 
+"@vuepress/types@1.9.9":
+  version "1.9.9"
+  resolved "https://registry.yarnpkg.com/@vuepress/types/-/types-1.9.9.tgz#7c21e4c91c13e58e2ff303ded9ad7425805cb07d"
+  integrity sha512-ukGW49ILzLhIc7CltHMr+BeIjWKloJNN1mrvbDz3beycp9b9kgH+DXNdRIK9QCKr4fJsy7x08vNMwZr9Nq/PTQ==
+  dependencies:
+    "@types/markdown-it" "^10.0.0"
+    "@types/webpack-dev-server" "^3"
+    webpack-chain "^6.0.0"
+
 "@webassemblyjs/ast@1.9.0":
   version "1.9.0"
   resolved "https://registry.yarnpkg.com/@webassemblyjs/ast/-/ast-1.9.0.tgz#bd850604b4042459a5a41cd7d338cbed695ed964"
@@ -1453,6 +1653,14 @@ anymatch@^2.0.0:
     micromatch "^3.1.4"
     normalize-path "^2.1.1"
 
+anymatch@^3.0.0:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-3.1.3.tgz#790c58b19ba1720a84205b57c618d5ad8524973e"
+  integrity sha512-KMReFUr0B4t+D+OBkjR3KYqvocp2XaSzO55UcB6mgQMd3KbcE+mWTyvVV7D/zsdEbNnV6acZUutkiHQXvTr1Rw==
+  dependencies:
+    normalize-path "^3.0.0"
+    picomatch "^2.0.4"
+
 anymatch@~3.1.1:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-3.1.1.tgz#c55ecf02185e2469259399310c173ce31233b142"
@@ -1772,7 +1980,7 @@ braces@^2.3.1, braces@^2.3.2:
     split-string "^3.0.2"
     to-regex "^3.0.1"
 
-braces@~3.0.2:
+braces@^3.0.2, braces@~3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/braces/-/braces-3.0.2.tgz#3454e1a462ee8d599e236df336cd9ea4f8afe107"
   integrity sha512-b8um+L1RzM3WDSzvhm6gIz1yfTbBt6YTlcEKAvsmqCZZFw46z626lVj9j1yEPW33H5H+lBQpZMP1k8l+78Ha0A==
@@ -1890,6 +2098,11 @@ builtin-status-codes@^3.0.0:
   resolved "https://registry.yarnpkg.com/builtin-status-codes/-/builtin-status-codes-3.0.0.tgz#85982878e21b98e1c66425e03d0174788f569ee8"
   integrity sha1-hZgoeOIbmOHGZCXgPQF0eI9Wnug=
 
+bundle-require@2.1.8:
+  version "2.1.8"
+  resolved "https://registry.yarnpkg.com/bundle-require/-/bundle-require-2.1.8.tgz#28f6de9d4468a6b7b76fb5c9bf52e70f5091245d"
+  integrity sha512-oOEg3A0hy/YzvNWNowtKD0pmhZKseOFweCbgyMqTIih4gRY1nJWsvrOCT27L9NbIyL5jMjTFrAUpGxxpW68Puw==
+
 bytes@3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.0.0.tgz#d32815404d689699f85a4ea4fa8755dd13a96048"
@@ -3115,6 +3328,114 @@ es6-promise@^4.1.0:
   resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.8.tgz#4eb21594c972bc40553d276e510539143db53e0a"
   integrity sha512-HJDGx5daxeIvxdBxvG2cb9g4tEvwIk3i8+nhX0yGrYmZUzbkdg8QbDevheDB8gd0//uPj4c1EQua8Q+MViT0/w==
 
+esbuild-android-arm64@0.14.7:
+  version "0.14.7"
+  resolved "https://registry.yarnpkg.com/esbuild-android-arm64/-/esbuild-android-arm64-0.14.7.tgz#8c78cbb617f9f216abfb5a84cca453b51421a1b6"
+  integrity sha512-9/Q1NC4JErvsXzJKti0NHt+vzKjZOgPIjX/e6kkuCzgfT/GcO3FVBcGIv4HeJG7oMznE6KyKhvLrFgt7CdU2/w==
+
+esbuild-darwin-64@0.14.7:
+  version "0.14.7"
+  resolved "https://registry.yarnpkg.com/esbuild-darwin-64/-/esbuild-darwin-64-0.14.7.tgz#7424bdb64c104556d36b7429af79ab51415ab8f4"
+  integrity sha512-Z9X+3TT/Xj+JiZTVlwHj2P+8GoiSmUnGVz0YZTSt8WTbW3UKw5Pw2ucuJ8VzbD2FPy0jbIKJkko/6CMTQchShQ==
+
+esbuild-darwin-arm64@0.14.7:
+  version "0.14.7"
+  resolved "https://registry.yarnpkg.com/esbuild-darwin-arm64/-/esbuild-darwin-arm64-0.14.7.tgz#6a243dc0132aeb11c1991f968a6a9e393f43c6bc"
+  integrity sha512-68e7COhmwIiLXBEyxUxZSSU0akgv8t3e50e2QOtKdBUE0F6KIRISzFntLe2rYlNqSsjGWsIO6CCc9tQxijjSkw==
+
+esbuild-freebsd-64@0.14.7:
+  version "0.14.7"
+  resolved "https://registry.yarnpkg.com/esbuild-freebsd-64/-/esbuild-freebsd-64-0.14.7.tgz#e7281e50522e724c4da502504dcd75be0db46c94"
+  integrity sha512-76zy5jAjPiXX/S3UvRgG85Bb0wy0zv/J2lel3KtHi4V7GUTBfhNUPt0E5bpSXJ6yMT7iThhnA5rOn+IJiUcslQ==
+
+esbuild-freebsd-arm64@0.14.7:
+  version "0.14.7"
+  resolved "https://registry.yarnpkg.com/esbuild-freebsd-arm64/-/esbuild-freebsd-arm64-0.14.7.tgz#31e513098efd181d76a3ba3ea285836d37f018a3"
+  integrity sha512-lSlYNLiqyzd7qCN5CEOmLxn7MhnGHPcu5KuUYOG1i+t5A6q7LgBmfYC9ZHJBoYyow3u4CNu79AWHbvVLpE/VQQ==
+
+esbuild-linux-32@0.14.7:
+  version "0.14.7"
+  resolved "https://registry.yarnpkg.com/esbuild-linux-32/-/esbuild-linux-32-0.14.7.tgz#82cf96accbf55d3007c3338dc3b3144efa9ae108"
+  integrity sha512-Vk28u409wVOXqTaT6ek0TnfQG4Ty1aWWfiysIaIRERkNLhzLhUf4i+qJBN8mMuGTYOkE40F0Wkbp6m+IidOp2A==
+
+esbuild-linux-64@0.14.7:
+  version "0.14.7"
+  resolved "https://registry.yarnpkg.com/esbuild-linux-64/-/esbuild-linux-64-0.14.7.tgz#67bdfe23a6ca918a0bb8e9558a3ee0fdf98c0bc0"
+  integrity sha512-+Lvz6x+8OkRk3K2RtZwO+0a92jy9si9cUea5Zoru4yJ/6EQm9ENX5seZE0X9DTwk1dxJbjmLsJsd3IoowyzgVg==
+
+esbuild-linux-arm64@0.14.7:
+  version "0.14.7"
+  resolved "https://registry.yarnpkg.com/esbuild-linux-arm64/-/esbuild-linux-arm64-0.14.7.tgz#f79c69ff0c176559c418de8e59aa3cf388fff992"
+  integrity sha512-kJd5beWSqteSAW086qzCEsH6uwpi7QRIpzYWHzEYwKKu9DiG1TwIBegQJmLpPsLp4v5RAFjea0JAmAtpGtRpqg==
+
+esbuild-linux-arm@0.14.7:
+  version "0.14.7"
+  resolved "https://registry.yarnpkg.com/esbuild-linux-arm/-/esbuild-linux-arm-0.14.7.tgz#3d665b35e1c27dbe1c9deb8bf956d7d1f191a21b"
+  integrity sha512-OzpXEBogbYdcBqE4uKynuSn5YSetCvK03Qv1HcOY1VN6HmReuatjJ21dCH+YPHSpMEF0afVCnNfffvsGEkxGJQ==
+
+esbuild-linux-mips64le@0.14.7:
+  version "0.14.7"
+  resolved "https://registry.yarnpkg.com/esbuild-linux-mips64le/-/esbuild-linux-mips64le-0.14.7.tgz#226114a0cc6649ba0ffd3428118a8f622872f16d"
+  integrity sha512-mFWpnDhZJmj/h7pxqn1GGDsKwRfqtV7fx6kTF5pr4PfXe8pIaTERpwcKkoCwZUkWAOmUEjMIUAvFM72A6hMZnA==
+
+esbuild-linux-ppc64le@0.14.7:
+  version "0.14.7"
+  resolved "https://registry.yarnpkg.com/esbuild-linux-ppc64le/-/esbuild-linux-ppc64le-0.14.7.tgz#5c67ae56517f2644d567b2ca5ecb97f9520cfc49"
+  integrity sha512-wM7f4M0bsQXfDL4JbbYD0wsr8cC8KaQ3RPWc/fV27KdErPW7YsqshZZSjDV0kbhzwpNNdhLItfbaRT8OE8OaKA==
+
+esbuild-netbsd-64@0.14.7:
+  version "0.14.7"
+  resolved "https://registry.yarnpkg.com/esbuild-netbsd-64/-/esbuild-netbsd-64-0.14.7.tgz#69dc0469ea089013956d8c6aa71c9e7fc25fc567"
+  integrity sha512-J/afS7woKyzGgAL5FlgvMyqgt5wQ597lgsT+xc2yJ9/7BIyezeXutXqfh05vszy2k3kSvhLesugsxIA71WsqBw==
+
+esbuild-openbsd-64@0.14.7:
+  version "0.14.7"
+  resolved "https://registry.yarnpkg.com/esbuild-openbsd-64/-/esbuild-openbsd-64-0.14.7.tgz#3a9d04ecf820708e2e5b7d26fa7332e3f19f6b6c"
+  integrity sha512-7CcxgdlCD+zAPyveKoznbgr3i0Wnh0L8BDGRCjE/5UGkm5P/NQko51tuIDaYof8zbmXjjl0OIt9lSo4W7I8mrw==
+
+esbuild-sunos-64@0.14.7:
+  version "0.14.7"
+  resolved "https://registry.yarnpkg.com/esbuild-sunos-64/-/esbuild-sunos-64-0.14.7.tgz#7c33a682f0fd9565cae7df165d0e8736b7b62623"
+  integrity sha512-GKCafP2j/KUljVC3nesw1wLFSZktb2FGCmoT1+730zIF5O6hNroo0bSEofm6ZK5mNPnLiSaiLyRB9YFgtkd5Xg==
+
+esbuild-windows-32@0.14.7:
+  version "0.14.7"
+  resolved "https://registry.yarnpkg.com/esbuild-windows-32/-/esbuild-windows-32-0.14.7.tgz#24ec706a5f25b4499048f56146bcff0ed3839dce"
+  integrity sha512-5I1GeL/gZoUUdTPA0ws54bpYdtyeA2t6MNISalsHpY269zK8Jia/AXB3ta/KcDHv2SvNwabpImeIPXC/k0YW6A==
+
+esbuild-windows-64@0.14.7:
+  version "0.14.7"
+  resolved "https://registry.yarnpkg.com/esbuild-windows-64/-/esbuild-windows-64-0.14.7.tgz#dd6d5b5bace93cd7a9174d31fbd727ba21885abf"
+  integrity sha512-CIGKCFpQOSlYsLMbxt8JjxxvVw9MlF1Rz2ABLVfFyHUF5OeqHD5fPhGrCVNaVrhO8Xrm+yFmtjcZudUGr5/WYQ==
+
+esbuild-windows-arm64@0.14.7:
+  version "0.14.7"
+  resolved "https://registry.yarnpkg.com/esbuild-windows-arm64/-/esbuild-windows-arm64-0.14.7.tgz#ecfd9ac289606f26760c4f737caaeeadfff3cfe3"
+  integrity sha512-eOs1eSivOqN7cFiRIukEruWhaCf75V0N8P0zP7dh44LIhLl8y6/z++vv9qQVbkBm5/D7M7LfCfCTmt1f1wHOCw==
+
+esbuild@0.14.7:
+  version "0.14.7"
+  resolved "https://registry.yarnpkg.com/esbuild/-/esbuild-0.14.7.tgz#e85cead55b0e1001abf1b2ce4a11c1d4d709d13c"
+  integrity sha512-+u/msd6iu+HvfysUPkZ9VHm83LImmSNnecYPfFI01pQ7TTcsFR+V0BkybZX7mPtIaI7LCrse6YRj+v3eraJSgw==
+  optionalDependencies:
+    esbuild-android-arm64 "0.14.7"
+    esbuild-darwin-64 "0.14.7"
+    esbuild-darwin-arm64 "0.14.7"
+    esbuild-freebsd-64 "0.14.7"
+    esbuild-freebsd-arm64 "0.14.7"
+    esbuild-linux-32 "0.14.7"
+    esbuild-linux-64 "0.14.7"
+    esbuild-linux-arm "0.14.7"
+    esbuild-linux-arm64 "0.14.7"
+    esbuild-linux-mips64le "0.14.7"
+    esbuild-linux-ppc64le "0.14.7"
+    esbuild-netbsd-64 "0.14.7"
+    esbuild-openbsd-64 "0.14.7"
+    esbuild-sunos-64 "0.14.7"
+    esbuild-windows-32 "0.14.7"
+    esbuild-windows-64 "0.14.7"
+    esbuild-windows-arm64 "0.14.7"
+
 escalade@^3.1.1:
   version "3.1.1"
   resolved "https://registry.yarnpkg.com/escalade/-/escalade-3.1.1.tgz#d8cfdc7000965c5a0174b4a82eaa5c0552742e40"
@@ -3830,6 +4151,11 @@ hex-color-regex@^1.1.0:
   resolved "https://registry.yarnpkg.com/hex-color-regex/-/hex-color-regex-1.1.0.tgz#4c06fccb4602fe2602b3c93df82d7e7dbf1a8a8e"
   integrity sha512-l9sfDFsuqtOqKDsQdqrMRk0U85RZc0RtOR9yPI7mRVOa4FsR/BVnZ0shmQRM96Ji99kYZP/7hn1cedc1+ApsTQ==
 
+highlight.js@^9.7.0:
+  version "9.18.5"
+  resolved "https://registry.yarnpkg.com/highlight.js/-/highlight.js-9.18.5.tgz#d18a359867f378c138d6819edfc2a8acd5f29825"
+  integrity sha512-a5bFyofd/BHCX52/8i8uJkjr9DYwXIPnM/plwI6W7ezItLGqzt7X2G2nXuYSfsIJdkwwj/g9DG1LkcGJI/dDoA==
+
 hmac-drbg@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/hmac-drbg/-/hmac-drbg-1.0.1.tgz#d2745701025a6c775a6c545793ed502fc0c649a1"
@@ -3969,7 +4295,18 @@ http-proxy-middleware@0.19.1:
     lodash "^4.17.11"
     micromatch "^3.1.10"
 
-http-proxy@^1.17.0:
+http-proxy-middleware@^1.0.0:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/http-proxy-middleware/-/http-proxy-middleware-1.3.1.tgz#43700d6d9eecb7419bf086a128d0f7205d9eb665"
+  integrity sha512-13eVVDYS4z79w7f1+NPllJtOQFx/FdUW4btIvVRMaRlUY9VGstAbo5MOhLEuUgZFRHn3x50ufn25zkj/boZnEg==
+  dependencies:
+    "@types/http-proxy" "^1.17.5"
+    http-proxy "^1.18.1"
+    is-glob "^4.0.1"
+    is-plain-obj "^3.0.0"
+    micromatch "^4.0.2"
+
+http-proxy@^1.17.0, http-proxy@^1.18.1:
   version "1.18.1"
   resolved "https://registry.yarnpkg.com/http-proxy/-/http-proxy-1.18.1.tgz#401541f0534884bbf95260334e72f88ee3976549"
   integrity sha512-7mz/721AbnJwIVbnaSv1Cz3Am0ZLT/UBwkC92VlxhXv/k/BBQfM2fXElQNC27BVGr0uwUpplYPQM9LnaBMR5NQ==
@@ -4380,6 +4717,11 @@ is-plain-obj@^1.0.0:
   resolved "https://registry.yarnpkg.com/is-plain-obj/-/is-plain-obj-1.1.0.tgz#71a50c8429dfca773c92a390a4a03b39fcd51d3e"
   integrity sha1-caUMhCnfync8kqOQpKA7OfzVHT4=
 
+is-plain-obj@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/is-plain-obj/-/is-plain-obj-3.0.0.tgz#af6f2ea14ac5a646183a5bbdb5baabbc156ad9d7"
+  integrity sha512-gwsOE28k+23GP1B6vFl1oVh/WOzmawBrKwo5Ev6wMKzPkaXaCDIQKzLnvsA42DRlbVTWorkgTKIviAKCWkfUwA==
+
 is-plain-object@^2.0.3, is-plain-object@^2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/is-plain-object/-/is-plain-object-2.0.4.tgz#2c163b3fafb1b606d9d17928f05c2a1c38e07677"
@@ -4913,6 +5255,14 @@ micromatch@^3.1.10, micromatch@^3.1.4:
     snapdragon "^0.8.1"
     to-regex "^3.0.2"
 
+micromatch@^4.0.2:
+  version "4.0.5"
+  resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-4.0.5.tgz#bc8999a7cbbf77cdc89f132f6e467051b49090c6"
+  integrity sha512-DMy+ERcEW2q8Z2Po+WNXuw3c5YaUSFjAO5GsJqfEl7UjvtIuFKO6ZrKvcItdy98dwFI2N1tg3zNIdKaQT+aNdA==
+  dependencies:
+    braces "^3.0.2"
+    picomatch "^2.3.1"
+
 miller-rabin@^4.0.0:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/miller-rabin/-/miller-rabin-4.0.1.tgz#f080351c865b0dc562a8462966daa53543c78a4d"
@@ -5540,6 +5890,11 @@ picomatch@^2.0.4, picomatch@^2.2.1:
   resolved "https://registry.yarnpkg.com/picomatch/-/picomatch-2.2.2.tgz#21f333e9b6b8eaff02468f5146ea406d345f4dad"
   integrity sha512-q0M/9eZHzmr0AulXyPwNfZjtwZ/RBZlbN3K3CErVrk50T2ASYI7Bye0EvekFY3IP1Nt2DHu0re+V2ZHIpMkuWg==
 
+picomatch@^2.3.1:
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/picomatch/-/picomatch-2.3.1.tgz#3ba3833733646d9d3e4995946c1365a67fb07a42"
+  integrity sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA==
+
 pify@^2.0.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/pify/-/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
@@ -7580,13 +7935,14 @@ vuepress-plugin-smooth-scroll@^0.0.3:
   dependencies:
     smoothscroll-polyfill "^0.4.3"
 
-vuepress@^1.2.0:
-  version "1.8.2"
-  resolved "https://registry.yarnpkg.com/vuepress/-/vuepress-1.8.2.tgz#97e8bf979630611fc7b621fc4cc35b798ee5e847"
-  integrity sha512-BU1lUDwsA3ghf7a9ga4dsf0iTc++Z/l7BR1kUagHWVBHw7HNRgRDfAZBDDQXhllMILVToIxaTifpne9mSi94OA==
+vuepress@^1.9.9:
+  version "1.9.9"
+  resolved "https://registry.yarnpkg.com/vuepress/-/vuepress-1.9.9.tgz#75b313f48a21b2eeb435cad52333f26b3b8a7404"
+  integrity sha512-CU94W3EdWaCavGx2VSvQJMI/hyv+m/YMdrvJJw67EVfmmJJDb1iTGrilDgLd0qsyrXzBy0Ru9Qi6rkf4IwcOTg==
   dependencies:
-    "@vuepress/core" "1.8.2"
-    "@vuepress/theme-default" "1.8.2"
+    "@vuepress/core" "1.9.9"
+    "@vuepress/theme-default" "1.9.9"
+    "@vuepress/types" "1.9.9"
     cac "^6.5.6"
     envinfo "^7.2.0"
     opencollective-postinstall "^2.0.2"
@@ -7604,10 +7960,8 @@ watchpack@^1.7.4:
   resolved "https://registry.yarnpkg.com/watchpack/-/watchpack-1.7.5.tgz#1267e6c55e0b9b5be44c2023aed5437a2c26c453"
   integrity sha512-9P3MWk6SrKjHsGkLT2KHXdQ/9SNkyoJbabxnKOoJepsvJjJG8uYTR3yTPxPQvNDI3w4Nz1xnE0TLHK4RIVe/MQ==
   dependencies:
-    chokidar "^3.4.1"
     graceful-fs "^4.1.2"
     neo-async "^2.5.0"
-    watchpack-chokidar2 "^2.0.1"
   optionalDependencies:
     chokidar "^3.4.1"
     watchpack-chokidar2 "^2.0.1"