Update index.html

Author: mdimado

about/index.html

@@ -225,7 +225,7 @@ <h2 class="section__header">Team 2023-24</h2>
             </div>
             <p class="card__header">Adhit Simhadri</p>
             <p class="card__info--handle"><a href="https://github.com/adhit-420" target="_blank"
-                rel="noopener">@adhit-420</a></p>
+                rel="noopener">@s-adhit</a></p>
             <p class="card__info--pos">Joint Secretary</p>
           </div>
           <div class="team card">