Merge branch 'main' into dev-guide

Author: Wendong-Fan

README.md

@@ -44,6 +44,8 @@ Built on [CAMEL-AI][camel-site]'s acclaimed open-source project, our system intr
 
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+[![][image-join-us]][join-us]
+
 <details>
 <summary><kbd>Table of contents</kbd></summary>