Add contributor link in index.html

Author: k-arindam

index.html

@@ -1713,6 +1713,10 @@ <h2>🌱 Project Status</h2>
                 <img src="https://github.com/k-arindam.png?size=56" alt="k-arindam">
                 <span>k-arindam</span>
             </a>
+            <a href="https://github.com/KartikSharma1k" target="_blank" class="contributor">
+                <img src="https://github.com/KartikSharma1k.png?size=56" alt="KartikSharma1k">
+                <span>KartikSharma1k</span>
+            </a>
         </div>
     </div>