add arxiv link

index.html

@@ -126,7 +126,7 @@
               <em><a class="small" style="color:black" href="https://www.jmlr.org/tmlr/papers/">ArXiv Preprint</a></em>
               <br>
               <br>
-              <a href="https://arxiv.org/">Paper</a> | <a 
+              <a href="https://arxiv.org/abs/2404.16818">Paper</a> | <a 
 href="https://github.com/visinf/primaps">Code</a>
               <br>
             </td>