Updates angular/hlsUtil.md

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angular/hlsUtil.md

@@ -86,8 +86,8 @@ function phoneNumber(){
 - 通过正则表达式校验 返回 `true of false`
 - 调用实例如下
 ```javascript
-function phoneNumber(){
-    alert(hlsUtil.phoneNumber('+86-18325379820'));
+function isEmailAddress(){
+    alert(hlsUtil.isEmailAddress('jingchao.wu@hand-china.com'));
   }
 ```