Update README.md

Author: Wscats

README.md

@@ -28,7 +28,8 @@ _:rabbit:angular的学习资料 These are about angular learning materials, hopi
 
 | Controller |
 | --------- |
-|[Angular控制器demo](https://wscats.github.io/angular-demo/view/student.html)|
+|[Angular控制器demo](https://wscats.github.io/angular-demo/view/student.html)|[Angular表达式](https://wscats.github.io/angular-demo/angular表达式.html)|
+|[Angular事件广播](https://wscats.github.io/angular-demo/angular事件广播.html)||
 
 
 ## 单页面应用