fp: Tweak html to had description

feely_pona_emscripten_shell.html

@@ -106,6 +106,12 @@
         </span>
     </div>
 
+    <div style="margin-left:5%;margin-right:5%;text-align:center;color:#fff">
+        <p>Help Terry fend off the horde by defending the lanes and
+        constructing buildings to slow them down.</br>Developed by Doyle, Josh
+        and Tom over 4 weeks.</br><a style="color:inherit;" href="https://git.doylet.dev/doylet/feely_pona">Source code here!</a></p>
+    </div>
+
     <textarea id="output" rows="8"></textarea>
     <script type='text/javascript'>
         var statusElement = document.querySelector('#status');