Update team.md

Alumni chapter aufklappbar

Author: cramerjulian21c

team.md

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     <b>Master thesis</b> on recurrence plot quantification of dynamic functional connectivity changes after stroke related to motor recovery.
 </div>
 
-
-## Alumni
-
+<details>
+<summary><strong>Alumni</strong></summary>
 <div>
      <div class="alumni-entry">
         <b>Irem Dilara Sen</b> <span class="year">(2024-2025)</span><br>
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         </div>
     </div>
 </div>
+</details>