diff --git a/docs/.vuepress/config.js b/docs/.vuepress/config.js
index 0e44ba68..628bfb0e 100644
--- a/docs/.vuepress/config.js
+++ b/docs/.vuepress/config.js
@@ -46,16 +46,17 @@ module.exports = {
           title: 'TLDR',
           path: '/',
         },
-        {
-          title: '集群安装',
-          path: '/guide/install-k8s.md',
-        },
         {
           title: '集群维护',
           children: [
+            {
+              title: '集群安装',
+              path: '/guide/install-k8s.md',
+            },
             '/guide/maintain/ha-mode.md',
             '/guide/maintain/add-replace-node.md',
-            '/guide/maintain/upgrade.md'
+            '/guide/maintain/upgrade.md',
+            '/guide/extra/speedup.md'
           ]
         },
         {
diff --git a/docs/guide/extra/speedup.md b/docs/guide/extra/speedup.md
new file mode 100644
index 00000000..b079cbeb
--- /dev/null
+++ b/docs/guide/extra/speedup.md
@@ -0,0 +1,14 @@
+---
+sidebarDepth: 0
+---
+
+# 加速执行
+
+KuboardSpray 已经尽可能地优化了 ansible 的执行速度，想要执行得快一些，有如下建议：
+
+* KuboardSpray 与集群的目标机器部署在同样的内网环境
+* 如果可能，不使用跳板机 / 堡垒机
+* 如果必须使用跳板机 / 堡垒机，则，为目标机器配置 ssh private key 登录，而不是使用密码
+
+
+
diff --git a/docs/guide/extra/websocket.md b/docs/guide/extra/websocket.md
new file mode 100644
index 00000000..5301a54a
--- /dev/null
+++ b/docs/guide/extra/websocket.md
@@ -0,0 +1,8 @@
+---
+sidebarDepth: 0
+---
+
+# WebSocket
+
+## websocket
+