update email address

Author: tluebeck

index.html

@@ -378,5 +378,5 @@ <h3>Berlin Open Lab (BOL)</h3>
 
       </div>
 <footer style="text-align: center; padding: 20px; font-size: 0.9em; color: #555;">
-      Please address all correspondence to: <a href="mailto:tim.luebeck@th-koeln.de">tim.luebeck@th-koeln.de</a>
+      Please address all correspondence to: <a href="mailto:tim.luebeck@icloud.com">tim.luebeck@icloud.com</a>
     </footer>