updated tweeter

Author: simongravelle

docs/index.html

@@ -93,7 +93,7 @@ <h2>
                                     </a>
                                 </li>
                                 <li>
-                                    <a target="_blank" href="https://twitter.com/GravelleSimon"
+                                    <a target="_blank" href="https://x.com/gmxtutorials"
                                     class="icon brands fa-twitter fa-3x">
                                         <span class="label">Twitter</span>
                                     </a>