update test-submit-to-parent

Author: magland

devel/test-submit-to-parent/index.html

@@ -17,6 +17,7 @@ <h1>Test Submit to Parent</h1>
                 <li>View the received message details in the messages section below</li>
             </ol>
             <p>This setup is useful when embedding sortingview within a larger application that needs to receive curation updates.</p>
+            <p>Source code: <a href="https://github.com/magland/sortingview/tree/main/devel/test-submit-to-parent">https://github.com/magland/sortingview/tree/main/devel/test-submit-to-parent</a>
         </div>
         <div class="iframe-container">
             <iframe