update readme

Author: yanhom1314

README.md

@@ -182,14 +182,6 @@ protected void afterExecute(Runnable r, Throwable t);
 
 ---
 
-## 知识星球
-
-<a href="https://t.zsxq.com/annca" target="_blank">
-    <img class="no-zoom" src="/resources/img/zsxq.png" width="50%" height="50%"/>
-</a>
-
----
-
 ## Star History
 
 [![Star History Chart](https://api.star-history.com/svg?repos=dromara/dynamic-tp&type=Date)](https://star-history.com/#dromara/dynamic-tp&Date)