docs(index.html): add section how to verify if debugging works as requested by web-eid-app/issues/214

Signed-off-by: Mart Somermaa <[email protected]>

Author: mrts

example/src/main/resources/templates/index.html

@@ -128,7 +128,7 @@ <h5>macOS</h5>
             <h5>Windows</h5>
             <p>Uninstall the Web eID software using <i>Add or remove programs</i>.</p>
 
-            <h4>Debugging and logs</h4>
+            <h4><a id="debugging-and-logs"></a>Debugging and logs</h4>
             <ul>
                 <li>
                     To debug the extension, open the extension page and select
@@ -173,6 +173,10 @@ <h4>Debugging and logs</h4>
                         </li>
                     </ul>
                 </li>
+                <li>
+                    You can verify if debugging works by executing the native application <code>web-eid</code> manually,
+                    there will be an informative message in the logs.
+                </li>
             </ul>
 
             <hr/>