Update Buy Me a Coffee link in index.html

Author: DevLabStudy

index.html

@@ -171,7 +171,7 @@ <h2 style="margin-top: 0; color: #0066cc;">Support My Journey</h2>
         <div class="btn-group">
             <a href="https://github.com/sponsors/DevLabStudy" class="btn btn-gh">GitHub Sponsor</a>
             <a href="https://www.patreon.com/DevLabStudy" class="btn btn-patreon">Patreon</a>
-            <a href="https://www.buymeacoffee.com/TobiK0" class="btn btn-coffee">Buy Me a Coffee</a>
+            <a href="https://www.buymeacoffee.com/devlabstudy" class="btn btn-coffee">Buy Me a Coffee</a>
         </div>
     </div>