update arxiv url

app.py

@@ -260,7 +260,7 @@ def build_demo():
                 <span style='font-size:18px'>If you find GeometryCrafter useful, please help ⭐ the \
                     <a style='font-size:18px' href='https://github.com/TencentARC/GeometryCrafter/'>[Github Repo]</a>\
                     , which is important to Open-Source projects. Thanks!\
-                    <a href='https://arxiv.org'>[arXiv]</a> \
+                    <a href='https://arxiv.org/abs/2504.01016'>[arXiv]</a> \
                     <a href='https://geometrycrafter.github.io'>[Project Page]</a> \
                 </span> 
             </div>