Create README.md

Wscats · web-flow · commit 69797c1de3f4 · 2017-06-11T16:31:31.000+08:00
diff --git a/README.md b/README.md
@@ -11,7 +11,7 @@ _:rabbit:angular&#30340;&#23398;&#20064;&#36164;&#26009; These are about angular learning materials, hopi
 |[Angular&#20107;&#20214;&#24191;&#25773;](https://wscats.github.io/angular-tutorial/angular&#20107;&#20214;&#24191;&#25773;.html)|[Angular&#22522;&#20110;$window&#30340;&#25968;&#25454;&#36890;&#20449;](https://wscats.github.io/angular-tutorial/angular&#22522;&#20110;$window&#30340;&#25968;&#25454;&#36890;&#20449;.html)|
 
 ## &#21452;&#21521;&#25968;&#25454;&#32465;&#23450;
-| Controller |
+| bi-directional data binding |
 | --------- |
 |[Angular&#30340;$watch,$apply&#21644;$digest](https://wscats.github.io/angular-tutorial/angular&#30340;$watch,$apply&#21644;$digest.html)|
 

-Original file line number
+Diff line change
 |[Angular事件广播](https://wscats.github.io/angular-tutorial/angular事件广播.html)|[Angular基于$window的数据通信](https://wscats.github.io/angular-tutorial/angular基于$window的数据通信.html)|
 ## 双向数据绑定
 -| Controller |
 +| bi-directional data binding |
 | --------- |
 |[Angular的$watch,$apply和$digest](https://wscats.github.io/angular-tutorial/angular的$watch,$apply和$digest.html)|