docs:update README.

README-zh.md

@@ -106,11 +106,7 @@ Spring Cloud Tencent 所有组件都已上传到 Maven 中央仓库，只需要
 
 ## 交流群
 
-扫码二维码，加入 Spring Cloud Tencent 交流群。欢迎用户反馈使用问题和优化建议。
+请扫描下方二维码添加微信，并发送“Spring Cloud Tencent”申请加群。
-
-<img src="https://user-images.githubusercontent.com/24446200/169198148-d4cc3494-3485-4515-9897-c8cb5504f706.png" width="20%" height="20%" />
-
-如果上方二维码失效，请扫描下方二维码添加微信，并发送“Spring Cloud Tencent”申请加群。
 
 <img src="https://github.com/Tencent/spring-cloud-tencent/assets/24446200/77912670-aa7b-44ec-a312-42a05d59b109" width=20% height=20%>
 

README.md

@@ -109,15 +109,10 @@ The address of Polaris server in spring-cloud-tencent-example is `grpc://119.91.
 
 ## Chat Group
 
-Please scan the QR code to join the chat group.
+Please scan the QR code to add WeChat, and send "Spring Cloud Tencent" to apply for joining the group.
-
-<img src="https://user-images.githubusercontent.com/24446200/169198148-d4cc3494-3485-4515-9897-c8cb5504f706.png" width="20%" height="20%" />
-
-If the above QR code fails, please scan the QR code to add WeChat, and send "Spring Cloud Tencent" to apply for joining the group.
 
 <img src="https://github.com/Tencent/spring-cloud-tencent/assets/24446200/77912670-aa7b-44ec-a312-42a05d59b109" width=20% height=20%>
 
-
 ## Stargazers over time
 
 If you are interested in Spring Cloud Tencent, please follow our project, thank you very much.