Update index.html

Author: roym899

index.html

@@ -22,7 +22,7 @@
                     <img src="assets/pdf.svg" alt="pdf" class="icon">
                     <div>pdf</div>
                 </a>
-                <a class="link" href="todo">
+                <a class="link" href="https://arxiv.org/abs/2405.03633">
                     <img src="assets/arxiv.svg" alt="arXiv" class="icon">
                     <div>arXiv</div>
                 </a>