Acknowledge Counter API

Author: SomajitDey

index.html

@@ -140,6 +140,7 @@ <h3>About</h3>
                   <li class="nav-item"><a class="nav-link" href="https://goqr.me/">goQR.me</a></li>
                   <li class="nav-item"><a class="nav-link" href="https://onesignal.com/web-push">OneSignal</a></li>
                   <li class="nav-item"><a class="nav-link" href="https://github.com/jakearchibald/idb-keyval">idb-keyval</a></li>
+                  <li class="nav-item"><a class="nav-link" href="https://counterapi.dev/">Counter API</a></li>
                 </ul>
                 </details>