Add link back to home.

Author: csyonghe

index.html

@@ -53,7 +53,7 @@
         <div class="navbar">
           <!-- Logo section -->
           <div class="navbar-logo">
-            <img src="./static/slang-logo.png" alt="Logo" class="logo-img" />
+            <a href="/"><img src="./static/slang-logo.png" alt="Logo" class="logo-img" /></a>
           </div>
 
           <!-- Load Demo section -->