GFP: add ArXiv link to the webpage

Author: TheotimeLH

publications/guided-flow-policy/index.html

@@ -105,6 +105,14 @@ <h1 class="title is-1 publication-title">Guided Flow Policy: Learning from High-
                     <span>Paper</span>
                   </a>
                 </span>
+                <span class="link-block">
+                  <a href="https://arxiv.org/abs/2512.03973" class="external-link button is-normal is-rounded is-dark">
+                    <span class="icon">
+                      <i class="ai ai-arxiv"></i>
+                    </span>
+                    <span>arXiv</span>
+                  </a>
+                </span>
                 <span class="link-block">
                   <a href="https://github.com/Simple-Robotics/guided-flow-policy"
                     class="external-link button is-normal is-rounded is-dark">
@@ -203,4 +211,4 @@ <h2 class="title is-3">Experiments across 144 tasks</h2>
 
 </body>
 
-</html>
+</html>