Update public/index.html

public/index.html

@@ -956,7 +956,7 @@
             <div class="col-4">
                    <div class="team-member">
                     <div class="member-img">
-                      <img src="assets/img/team/avatar.png" class="img-fluid" alt="Annegret Höpner">
+                      <img src="https://www.hft-stuttgart.de/fileadmin/Dateien/Profilbilder/_processed_/8/6/csm_image002_36639a5d59.jpg" class="img-fluid" alt="Annegret Höpner">
                     </div>
                     <div class="member-info">
                       <h4>