Add How PyBot was created section below the demo

site/index.html

@@ -43,6 +43,8 @@
   .sw-prop { background:var(--paper); border-width:2px !important; } .sw-off { background:var(--off); border-color:var(--faint) !important; }
   .foot { font:13px var(--mono); color:var(--mute); margin-top:14px; } .foot a { color:inherit; }
   .progress { margin:32px 0; }
+  .creation { margin-top:32px; }
+  .creation h2 { font:400 32px/1.2 var(--lead); margin:0 0 16px; }
   .progress h2 { font:400 32px/1.2 var(--lead); margin:0 0 8px; }
   .progress p { max-width:680px; }
   #progress-chart { width:100%; height:460px; }
@@ -90,6 +92,9 @@
     </div>
   </section>
   <p class="foot">PyBot at commit <a id="commit" target="_blank" rel="noopener"></a>. Click a file to open it on the Hub.</p>
+  <section class="creation" aria-labelledby="creation-title">
+    <h2 id="creation-title">How PyBot was created</h2>
+  </section>
 </main>
 <script>/**
 * plotly.js v2.35.2