Merge pull request agusmakmun#5 from pizycki/master

Upgrade json dependency from 1.8.1 to 1.8.6

Author: agusmakmun

Gemfile.lock

@@ -89,7 +89,7 @@ GEM
       gemoji (~> 2.0)
       html-pipeline (~> 2.2)
       jekyll (>= 3.0)
-    json (1.8.1)
+    json (1.8.6)
     kramdown (1.10.0)
     liquid (3.0.6)
     listen (3.0.6)