Update README.md

README.md

@@ -59,13 +59,10 @@ Please refer to our [github repo](https://github.com/PKU-ONELab/Themis) for more
 ## Citation
 
 ```
-@misc{hu2024themisflexibleinterpretablenlg,
+@article{hu2024themis,
   title={Themis: Towards Flexible and Interpretable NLG Evaluation},
-      author={Xinyu Hu and Li Lin and Mingqi Gao and Xunjian Yin and Xiaojun Wan},
-      year={2024},
-      eprint={2406.18365},
-      archivePrefix={arXiv},
-      primaryClass={cs.CL},
-      url={https://arxiv.org/abs/2406.18365}, 
+  author={Hu, Xinyu and Lin, Li and Gao, Mingqi and Yin, Xunjian and Wan, Xiaojun},
+  journal={arXiv preprint arXiv:2406.18365},
+  year={2024}
 }
 ```