Add organizer info link to footer

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: brunoborges

index.html

@@ -227,6 +227,7 @@ <h2 class="section-title">General Prerequisites</h2>
                 <a href="https://github.com/github/awesome-copilot" target="_blank">Awesome Copilot</a>
             </div>
             <p class="footer-credit">Built with 💜 by the GitHub Copilot Team</p>
+            <p class="footer-credit" style="margin-top: 1rem;">Organizers of GitHub Copilot Dev Days, visit <a href="https://github.com/github/GitHub-Copilot-Dev-Days/" target="_blank" style="color: var(--neon-cyan);">github.com/github/GitHub-Copilot-Dev-Days</a> for more information.</p>
         </div>
     </footer>
 </body>