Update sidebar.html

Author: app-generator

apps/templates/includes/sidebar.html

@@ -124,7 +124,8 @@
                 </svg> Error 500</a></li>
           </ul>
         </li>
-        <li class="nav-item mt-auto"><a class="nav-link" target="_blank" href="https://appseed.us/admin-dashboards/flask-dashboard-coreui">
+        <li class="nav-item mt-auto">
+          <a class="nav-link" target="_blank" href="https://appseed.us/product/coreui/flask/">
             <svg class="nav-icon">
               <use xlink:href="/static/assets/vendors/@coreui/icons/svg/free.svg#cil-cloud-download"></use>
             </svg> Download</a></li>