Update README.md

Author: BearJ

README.md

@@ -41,7 +41,7 @@ npm run build
 #### global 
 
 ```html
-<link rel="stylesheet" href="https://res.wx.qq.com/open/libs/weui/1.1.3/weui.min.css">
+<link rel="stylesheet" href="https://res.wx.qq.com/open/libs/weui/1.1.2/weui.min.css">
 <script type="text/javascript" src="https://res.wx.qq.com/open/libs/weuijs/1.1.3/weui.min.js"></script>
 <script type="text/javascript">
     weui.alert('alert');