Update index.html

Author: sarthakdas

index.html

@@ -103,12 +103,12 @@ <h1 class="title is-1 publication-title">Ark: An Open-source Python-based Framew
               </span> -->
 
               <span class="link-block">
-                <a href=""
+                <a href="https://github.com/orgs/Robotics-Ark/repositories"
                    class="external-link button is-normal is-rounded is-dark">
                   <span class="icon">
                       <i class="fab fa-github"></i>
                   </span>
-                  <span>Code(coming soon)</span>
+                  <span>Code</span>
                   </a>
               </span>              
             </div>
@@ -166,7 +166,7 @@ <h2 class="title is-3">Abstract</h2>
         <!-- <h2 class="title is-3">Image</h2> -->
         <div class="content has-text-justified">
           <center>
-            <img src="static/images/ArkFigure_page_15.jpg" alt="Ark Network" width="900" height="600">
+            <img src="static/images/Ark_Framework_Overview.pdf" alt="Ark Network" width="900" height="600">
           </center>
         </div>
       </div>