Update arxiv link to go to abstract page instead of pdf

Author: robot-colosseum

index.html

@@ -98,7 +98,7 @@ <h3 class="title is-4 conference-authors"><a target="_blank" href="https://robot
           </div>
           <div class="column has-text-centered">
             <span class="link-block">
-              <a target="_blank" href="https://arxiv.org/pdf/2402.08191.pdf"
+              <a target="_blank" href="https://arxiv.org/abs/2402.08191"
                  class="external-link button is-normal is-rounded is-dark">
                 <span class="icon">
                     <i class="fas fa-file"></i>