added pictures

Author: martinG-5

_pages/organisers.md

@@ -101,11 +101,11 @@ nav_order:
     </div>
     <div class="col-auto mb-3">
         <div class="card h-100" style="width: 14rem;">
-          <img src="/assets/img/organisers/female_placeholder.png" class="card-img-top" alt="Gemma Seghi">
+          <img src="/assets/img/organisers/gemmaseghi.png" class="card-img-top" alt="Gemma Seghi">
             <div class="card-body">
               <h5 class="card-title">Gemma Seghi</h5>
               <h6 class="card-subtitle mb-2 text-muted">University of Tübingen</h6>
-                <p class="card-text"></p>
+                <p class="card-text">gemma.seghi[at]uni-tuebingen.de</p>
             </div>
         </div>
     </div>

_pages/speakers.md

@@ -31,7 +31,7 @@ nav_order: 4
         name="Camille Gontier"
         affiliation="University of Pittsburgh"
         url="https://camillegontier.github.io/"
-        img="assets/img/speakers/male_placeholder.jpg"
+        img="assets/img/speakers/2026/camilleGontier.jpg"
     %}
     {% include people.liquid
         name="Michael Hahn"
@@ -55,7 +55,7 @@ nav_order: 4
         name="Polina Tsvilodub"
         affiliation="University of Tübingen"
         url="https://polina-tsvilodub.github.io/home/"
-        img="assets/img/speakers/female_placeholder.jpg"
+        img="assets/img/speakers/2026/polinaTsvilodub.jpeg"
     %}
     {% include people.liquid
         name="Hong Yu Wong"