Update README-cn.md

Author: aidlearning

README-cn.md

@@ -83,11 +83,10 @@ AI编程平台由深度学习框架和Python可视化编程框架（Python IDE
 - [更多参考](intr.md)
 <img src="images/QQqun.png" height="256"/>
 
-- 推特
-Twitter- https://twitter.com/aidlearning
+- [推特](https://twitter.com/aidlearning)
+
+- [更多示例](http://code.aidlearning.net:3000/explore/repos)
 
-- 更多示例
-http://code.aidlearning.net:3000/explore/repos
 
 <img src="images/examples.png"/>