Update index.html

Author: zhushangwen

pages/TheMatrixDataset/index.html

@@ -258,7 +258,7 @@ <h1 style="color: var(--primary-color);">🚀 Matrix Dataset Documentation</h1>
         <a href="https://matrixteam-ai.github.io/docs/TheMatrixDatasetDocs/" class="nav-button" target="_blank">
             <span class="icon">📁</span> Dataset Docs
         </a>
-        <a href="[GITHUB_URL]" class="nav-button" target="_blank">
+        <a href="https://github.com/ali-vilab/matrix" class="nav-button" target="_blank">
             <span class="icon">📦</span>GitHub
         </a>
         <!-- Dataset Overview -->