Add missing supervisor name for 2 projects

Author: dpiparo

html/cards.html

@@ -162,7 +162,7 @@ <h3>Improve robustness of dictionary to module lookups in ROOT</h3>
 <span class="skill-badge">Cling</span>
 <span class="skill-badge">ROOT</span>
 </div>
-<p class="responsible"><strong>Responsible:</strong> -</p>
+<p class="responsible"><strong>Responsible:</strong>  Vassil Vassilev</p>
 <p class="target"><strong>Target:</strong> GSoC Student</p>
 <p class="duration">3-4 months</p>
 <p class="areas" style="display:none;"><strong>ROOT areas:</strong> Compiler Technology</p>
@@ -197,7 +197,7 @@ <h3>Implement CppInterOp API exposing memory, ownership and thread safety inform
 <span class="skill-badge">Cling</span>
 <span class="skill-badge">cppyy</span>
 </div>
-<p class="responsible"><strong>Responsible:</strong> -</p>
+<p class="responsible"><strong>Responsible:</strong> Vassil Vassilev</p>
 <p class="target"><strong>Target:</strong> GSoC Student</p>
 <p class="duration">3-4 months</p>
 <p class="areas" style="display:none;"><strong>ROOT areas:</strong> Compiler Technology</p>
@@ -333,4 +333,4 @@ <h3 id="modal-title"></h3>
     <img src="assets/images/root_logo.png" alt="ROOT Logo" style="height: 30px;">
     <img src="assets/images/ep_sft_logo.png" alt="EP-SFT Logo" style="height: 60px;">
     <span>ROOT Open Projects | 2025</span>
-</footer>
+</footer>