update Dou Du's email address

Dou Du · Dou Du · commit b0a70bbd11ba · 2024-06-10T16:03:09.000+02:00
diff --git a/about/team.rst b/about/team.rst
@@ -46,7 +46,7 @@ Main Team
 
       .. image:: images/du.jpg
 
-      `Dr. Dou Du <https://people.epfl.ch/dou.du>`_
+      `Dr. Dou Du <mailto:dou.du@icloud.com>`_
 
    .. grid-item-card::
       :text-align: center
