Update index.html

Author: basicx-StrgV

docs/index.html

@@ -126,6 +126,7 @@ <h1><a class="anchor" id="autotoc_md3"></a>
 <li>[x] Calculate file hash</li>
 <li>[x] Export Settings</li>
 <li>[x] Download package installer</li>
+<li>[x] Manage pinned packages</li>
 </ul>
 </li>
 <li>Other<ul>