docs: update group code (#4582)

* docs: update group code

* chore: update uniapp group code

* fix: fix Markdown formatting error

---------

Co-authored-by: anlyyao <anly_yaw@163.com>

Author: uyarn

README.md

@@ -85,7 +85,18 @@ npm run dev
 
 有任何问题，建议通过 [Github issues](https://github.com/Tencent/tdesign-miniprogram/issues) 反馈或扫码加入用户微信群。
 
-<img src="https://raw.githubusercontent.com/Tencent/tdesign/main/packages/site-components/src/images/groups/wx-group.png" width="200" />
+<table>
+  <tr>
+    <td align="center">
+      <img src="https://raw.githubusercontent.com/Tencent/tdesign/main/packages/site-components/src/images/groups/wx-group.png" width="200" /><br />
+      微信小程序
+    </td>
+    <td align="center">
+      <img src="https://raw.githubusercontent.com/Tencent/tdesign/main/packages/site-components/src/images/groups/uniapp-group.png" width="200" /><br />
+      Uniapp
+    </td>
+  </tr>
+</table>
 
 ## 开源协议
 

packages/tdesign-uniapp-chat/README.md

@@ -167,7 +167,7 @@ import TChatList from '@tdesign/uniapp-chat/chat-list/chat-list.vue';
 
 有任何问题，建议通过 [Github issues](https://github.com/Tencent/tdesign-miniprogram/issues) 反馈或扫码加入用户微信群。
 
-<img src="https://raw.githubusercontent.com/Tencent/tdesign/main/packages/site-components/src/images/groups/wx-group.png" width="200" />
+<img src="https://raw.githubusercontent.com/Tencent/tdesign/main/packages/site-components/src/images/groups/uniapp-group.png" width="200" />
 
 ## 开源协议
 

packages/tdesign-uniapp/README.md

@@ -176,7 +176,7 @@ import TLoading from '@tdesign/uniapp/loading/loading.vue';
 
 有任何问题，建议通过 [Github issues](https://github.com/Tencent/tdesign-miniprogram/issues) 反馈或扫码加入用户微信群。
 
-<img src="https://raw.githubusercontent.com/Tencent/tdesign/main/packages/site-components/src/images/groups/wx-group.png" width="200" />
+<img src="https://raw.githubusercontent.com/Tencent/tdesign/main/packages/site-components/src/images/groups/uniapp-group.png" width="200" />
 
 ## 开源协议