update README.md.

README.md

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 演示地址：http://vue.ruoyi.vip  
 文档地址：http://doc.ruoyi.vip
-
-## 演示图
-
-<table>
-    <tr>
-        <td><img src="https://images.gitee.com/uploads/images/2020/0523/102616_d94ada2f_1766278.jpeg"/></td>
-        <td><img src="https://images.gitee.com/uploads/images/2020/0523/102617_016f5bcf_1766278.jpeg"/></td>
-    </tr>
-    <tr>
-        <td><img src="https://images.gitee.com/uploads/images/2020/0523/102616_f479788d_1766278.jpeg"/></td>
-        <td><img src="https://images.gitee.com/uploads/images/2020/0523/102616_6ec5b078_1766278.jpeg"/></td>
-    </tr>
-    <tr>
-        <td><img src="https://images.gitee.com/uploads/images/2020/0523/102616_57a03817_1766278.jpeg"/></td>
-        <td><img src="https://images.gitee.com/uploads/images/2020/0523/102616_1077f0e1_1766278.jpeg"/></td>
-    </tr>
-	<tr>
-        <td><img src="https://images.gitee.com/uploads/images/2020/0523/102617_117a21e0_1766278.jpeg"/></td>
-        <td><img src="https://images.gitee.com/uploads/images/2020/0523/102617_4086e6f3_1766278.jpeg"/></td>
-    </tr>	 
-    <tr>
-        <td><img src="https://images.gitee.com/uploads/images/2020/0523/102617_b3c6d70e_1766278.jpeg"/></td>
-        <td><img src="https://images.gitee.com/uploads/images/2020/0523/102617_bdcfa03d_1766278.jpeg"/></td>
-    </tr>
-	<tr>
-        <td><img src="https://images.gitee.com/uploads/images/2020/0523/102617_ad83b775_1766278.jpeg"/></td>
-        <td><img src="https://images.gitee.com/uploads/images/2020/0523/102618_ed9e3ba4_1766278.jpeg"/></td>
-    </tr>
-	<tr>
-        <td><img src="https://images.gitee.com/uploads/images/2020/0523/102617_3033dd06_1766278.png"/></td>
-        <td><img src="https://images.gitee.com/uploads/images/2020/0523/102617_7597a8de_1766278.png"/></td>
-    </tr>
-    <tr>
-        <td><img src="https://images.gitee.com/uploads/images/2020/0523/102617_58ad38a4_1766278.jpeg"/></td>
-        <td><img src="https://oscimg.oschina.net/oscnet/up-6d73c2140ce694e3de4c05035fdc1868d4c.png"/></td>
-    </tr>
-</table>
-
-
-## 若依前后端分离交流群
-
-QQ群： [![加入QQ群](https://img.shields.io/badge/已满-937441-blue.svg)](https://jq.qq.com/?_wv=1027&k=5bVB1og) [![加入QQ群](https://img.shields.io/badge/已满-887144332-blue.svg)](https://jq.qq.com/?_wv=1027&k=5eiA4DH) [![加入QQ群](https://img.shields.io/badge/已满-180251782-blue.svg)](https://jq.qq.com/?_wv=1027&k=5AxMKlC) [![加入QQ群](https://img.shields.io/badge/104180207-blue.svg)](https://jq.qq.com/?_wv=1027&k=51G72yr) 点击按钮入群。