Link demo to paper

This PR ensures people can find the demo at https://huggingface.co/papers/2410.11831.

README.md

@@ -14,6 +14,8 @@ license: cc-by-nc-4.0
 
 This is a demo for ["CoTracker3: Simpler and Better Point Tracking by Pseudo-Labelling Real Videos"](https://cotracker3.github.io/)
 
+Paper page: https://huggingface.co/papers/2410.11831
+
 ```
 @InProceedings{karaev2024cotracker3,
     author    = {Nikita Karaev and Iurii Makarov and Jianyuan Wang and Natalia Neverova and Andrea Vedaldi and Christian Rupprecht},