update app,py

app.py

@@ -88,7 +88,7 @@ with github_col:
     st.write('GitHub repo:https://github.com/BAAI-DCAI/SegVol')
 
 with arxive_col:
-    st.write('arXiv:https://arxiv.org/abs/2311.13385')
+    st.write('Paper:https://arxiv.org/abs/2311.13385')
 
 
 # modify demo case here