chore: Update README with new banner image link

Added a new banner image link to the README.

Author: binggg

README.md

@@ -1,6 +1,7 @@
 <div align="center"><a name="readme-top"></a>
+
 
-<a href="https://tencentcloudbase.github.io/CloudBase-MCP/2025/" target="_blank"><img width="3094" height="654" alt="banner" src="https://github.com/user-attachments/assets/39adbeac-1f43-4a31-bb9b-d6f65e905295" /></a>
+<a href="https://cloud.tencent.com/developer/article/2649588" target="_blank"><img width="3094" height="654" alt="banner" src="https://github.com/user-attachments/assets/37982d04-274a-4b6c-85b8-06983c615d9a" /></a>
 
 ![](scripts/assets/toolkit-better.gif)