Implement Missing Header Feature (#1776)

Author: Daltz333

source/_templates/layout.html

@@ -15,6 +15,11 @@
                 <ul>          
                   <li id="manual-link"><a href="https://www.firstinspires.org/resource-library/frc/competition-manual-qa-system">FRC Game Manual</a></li>
                   <li id="qa-link"><a href="https://frc-qa.firstinspires.org/">FRC Game Q&A</a></li>
+                  <script id="headerscript">
+                    if( new Date().getMonth() == 3 && new Date().getDate() == 1) {
+                      document.getElementById("headerscript").insertAdjacentHTML("afterend", '<li id="water-link"><a href="https://www.youtube.com/watch?v=dQw4w9WgXcQ">Water Game</a></li>');
+                    }
+                  </script>
                 </ul>
             </div>
         </div>