Update README.md

README.md

@@ -43,6 +43,11 @@ Author: [Weike Zhao](https://angelakeke.github.io/)
 If you have any questions, please feel free to contact [email protected].
 
 ## Citation
-```
-
+```bibtex
+@article{zhao2024ratescore,
+  title={RaTEScore: A Metric for Radiology Report Generation},
+  author={Zhao, Weike and Wu, Chaoyi and Zhang, Xiaoman and Zhang, Ya and Wang, Yanfeng and Xie, Weidi},
+  journal={arXiv preprint arXiv:2406.16845},
+  year={2024}
+}
 ```