Update README.md

README.md

@@ -18,10 +18,11 @@ This model can generate query-specific LLM-based multi-agent system, which is fi
 See our paper [MAS-GPT: Training LLMs to Build LLM-based Multi-Agent Systems](https://arxiv.org/pdf/2503.03686).
 
 ## Citation
-
+```
 @article{ye2025mas,
   title={MAS-GPT: Training LLMs to build LLM-based multi-agent systems},
   author={Ye, Rui and Tang, Shuo and Ge, Rui and Du, Yaxin and Yin, Zhenfei and Chen, Siheng and Shao, Jing},
   journal={arXiv preprint arXiv:2503.03686},
   year={2025}
 }
+```