modify README, sync GitHub repository link with MicroG-4M renaming

README.md

@@ -21,7 +21,7 @@ pipeline_tag: video-classification
      style="display: inline-block; margin: 0 4px;">
     <img src="https://img.shields.io/badge/arXiv-Paper-b31b1b?logo=arxiv" alt="arXiv Paper"/>
   </a>
-    <a href="https://github.com/LEI-QI-233/HAR-in-Space"
+    <a href="https://github.com/LEI-QI-233/MicroG-4M"
      style="display: inline-block; margin: 0 4px;">
     <img src="https://img.shields.io/badge/GitHub-GitHub Repo-white?logo=github"
          alt="GitHub"/>