update gallery

index.html

@@ -60,7 +60,7 @@ <h1 class="title is-3 publication-title">Open-Sora: Democratizing Efficient Vide
                 </span>
                 <!-- Code Link. -->
                 <span class="link-block">
-                  <a href="https://github.com/google/nerfies" class="external-link button is-normal is-rounded is-dark">
+                  <a href="https://github.com/hpcaitech/Open-Sora" class="external-link button is-normal is-rounded is-dark">
                     <span class="icon">
                       <i class="fab fa-github"></i>
                     </span>