Update credits: German footer and personal attribution

index.html

@@ -361,8 +361,8 @@
     </div>
 
     <div class="footer">
-        This QR code generator works entirely in your browser. No data is sent to any server.
-        <p class="credit">made with whimsy by <a href="https://www.gabe-sky.com/" target="_blank" style="color: rgb(0, 0, 0);">gabe</a>. self hosted on <a href="https://unraid.net" target="_blank">Unraid</a> by <a href="https://medisoftware.de" target="_blank">medisoftware</a>.</p>
+        Dieser QR-Code-Generator funktioniert vollständig in deinem Browser. Es werden keine Daten an einen Server gesendet.
+        <p class="credit">made with ❤️ and 🍪 by markus. self hosted on <a href="https://unraid.net" target="_blank">Unraid</a> for <a href="https://medisoftware.de" target="_blank">medisoftware</a>. credits: <a href="https://qr.alster.space/" target="_blank">alsternerd</a></p>
     </div>
 
     <script>