Add link to paper so it's linked from paper page

README.md

@@ -15,4 +15,6 @@ Check out the configuration reference at https://huggingface.co/docs/hub/spaces-
 To develop this app, it can be run with:
 ```
 gradio app.py
-```
+```
+
+Paper: https://arxiv.org/abs/2403.13787