Documentation update

docs/py-modindex.html

@@ -279,6 +279,11 @@ document.write(`
      <tr class="pcap"><td></td><td>&#160;</td><td></td></tr>
      <tr class="cap" id="cap-a"><td></td><td>
        <strong>a</strong></td><td></td></tr>
+     <tr>
+       <td></td>
+       <td>
+       <a href="index.html#module-app"><code class="xref">app</code></a></td><td>
+       <em></em></td></tr>
      <tr>
        <td><img src="_static/minus.png" class="toggler"
               id="toggle-1" style="display: none" alt="-" /></td>