Update app.py

app.py

@@ -249,11 +249,12 @@ def main():
 
     <div style="text-align: center;">
     <div style="display: flex; align-items: center; justify-content: center; gap: 0.5rem; margin-bottom: 0.5rem; font-size: 1rem; flex-wrap: wrap;">
-    <a href="https://arxiv.org/submit/5810210" target="_blank">[Paper]</a>
+    <a href="https://github.com/ZiyuGuo99/SAM2Point/blob/main/SAM2Point.pdf" target="_blank">[Paper]</a>
     <a href="https://github.com/ZiyuGuo99/SAM2Point" target="_blank">[Code]</a>
     </div>
     </div>
-    <p>Select an example to start segmentation using <span style="font-variant: small-caps;">SAM2Point</span>. Custom prompts for segmentation will be supported soon.
+    <p style="text-align: center;">
+    Select an example to start segmentation using <span style="font-variant: small-caps;">Sam2Point</span>. Custom prompts for segmentation will be supported soon.
     </p>
     """