add nora avatar

public/content/team.json

@@ -140,7 +140,7 @@
         "firstName": "Nora ",
         "lastName": "Bartke",
         "jobTitle_en": "Researcher",
-        "imgUrl": "https://www.w3schools.com/w3images/avatar2.png",
+        "imgUrl": "https://www.hft-stuttgart.de/fileadmin/Dateien/Profilbilder/_processed_/0/2/csm_nora-bartke.256x256_77b63de982.jpg",
         "profile_link": "https://www.hft-stuttgart.de/p/Nora-Bartke",
         "researchTopics": ""
     }