Update index.html

Author: yejy53

index.html

@@ -104,7 +104,7 @@ <h4><sup>*</sup>Equal Contribution <sup><math xmlns="http://www.w3.org/1998/Math
 
                   <!-- Github link -->
                   <span class="link-block">
-                    <a href="https://github.com/YOUR REPO HERE" target="_blank"
+                    <a href="https://opendatalab.github.io/CrossViewDiff/" target="_blank"
                     class="external-link button is-normal is-rounded is-dark">
                     <span class="icon">
                       <i class="fab fa-github"></i>