try to fix h2 div containment conflict

It turns out that one cannot have a div element inside an h2 element.

Testing a potential fix for the top level `index.html`
whereby the h2 element sits inside the div element.

index.html

@@ -208,7 +208,7 @@ You may also check on the <a href="status.json">status.json</a> for the current
 -->
 
 <div class="footer">
-  <h2><div id="copyright">Copyright and CC BY-SA 4.0 License</div></h2>
+  <div id="copyright"><h2>Copyright and CC BY-SA 4.0 License</h2></div>
   <p>All IOCCC content including this file and web page are:</p>
   <b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Copyright &copy; 1984-2024 by Landon Curt Noll. <a href="https://creativecommons.org/faq/#what-does-some-rights-reserved-mean">Some Rights Reserved</a>.</b>
   <p>This work is licensed by Landon Curt Noll under:</p>