Update README.md

README.md

@@ -79,9 +79,11 @@ The assets are licensed under [CC BY-NC 4.0](https://creativecommons.org/license
 
 If you use ManiSkill2 or its assets, models, and demonstrations, please cite using the following BibTeX entry:
 
+```
 @inproceedings{gu2023maniskill2,
   title={ManiSkill2: A Unified Benchmark for Generalizable Manipulation Skills},
   author={Gu, Jiayuan and Xiang, Fanbo and Li, Xuanlin and Ling, Zhan and Liu, Xiqiaing and Mu, Tongzhou and Tang, Yihe and Tao, Stone and Wei, Xinyue and Yao, Yunchao and Yuan, Xiaodi and Xie, Pengwei and Huang, Zhiao and Chen, Rui and Su, Hao},
   booktitle={International Conference on Learning Representations},
   year={2023}
-}
+}
+```