Update demo

Author: feizc

index.html

@@ -136,7 +136,7 @@ <h1 class="title is-3 publication-title">SkyReels-A3: Towards Ultra-Long Audio-C
                       </a>
                   </span> -->
                   <span class="link-block">
-                    <a href="https://www.skyreels.ai"
+                    <a href="https://www.skyreels.ai/home/tools/lip-sync?refer=navbar"
                       class="external-link button is-normal is-rounded is-dark">
                       <span class="icon">
                         <i class="fa fa-grin-tongue"></i>