Update README.md

README.md

@@ -11,6 +11,8 @@ Support using [Redis](http://redis.io) to store `access_token`
 
 [Getting-Started](https://github.com/lanrion/weixin_authorize/wiki/Getting-Started)
 
+注意：查看Wiki或者源代码时，请切换对应的版本来查看。Master处于不断更新完善分支。
+
 ## How to test
 
 Go to https://github.com/lanrion/weixin_authorize/issues/2, apply a weixin sandbox test account and follow this account, then add them to your `~/.bash_profile`