CHANGELOG.md in wechat-jsapi-0.1.1 vs CHANGELOG.md in wechat-jsapi-0.1.2

@@ -3,8 +3,11 @@
 ## v0.1
 1. Signature class
 2. Ticket wrapper class
 
 ## v0.1.1
-1. Improve the Ruby Gem Specification to depend on [wechat-core](https://github.com/topbitdu/wechat-core) v0.4
-2. Improve the Signature class for the argument validation
+1. Improved the Ruby Gem Specification to depend on [wechat-core](https://github.com/topbitdu/wechat-core) v0.4
+2. Improved the Signature class for the argument validation
 3. Improve the Ticket wrapper class for the argument validation & HTTP request
+
+## v0.1.2
+1. Improve the Ticket wrapper class for the HTTP request