back to orignal github

Signed-off-by: Melody Nguyen <128001866+melodyxnguyen@users.noreply.github.com>

index.html

@@ -31,7 +31,7 @@ <h2 class="page-description">{{ site.description }}</h2>
   <div style="display: flex; flex-wrap: wrap; justify-content: center; align-items: center; text-align: center; margin-bottom: 40px;">
     <div style="margin: -50px; flex: 1;">
       <a href="https://github.com/arras-energy/" target="_blank">
-        <img src="/assets/images/github.png" alt="GitHub" style="max-width: 50%; margin-top: 10px;">
+        <img src="/assets/images/github.svg" alt="GitHub" style="max-width: 50%; margin-top: 10px;">
       </a>
     </div>   
     <div style="margin: -50px; flex: 1;">