Fix typo

README.md

@@ -44,7 +44,7 @@ Please cite [**robosuite**](https://robosuite.ai) if you use this framework in y
 ```bibtex
 @inproceedings{robosuite2020,
   title={robosuite: A Modular Simulation Framework and Benchmark for Robot Learning},
-  author={Yuke Zhu and Josiah Wong and Ajay Mandlekar and Roberto Mart\'{i}n-Mart\'{i}n and Abhishek Joshi and Soroush Nasiriany and Yifeng Zhu and Kevin Lin 1},
+  author={Yuke Zhu and Josiah Wong and Ajay Mandlekar and Roberto Mart\'{i}n-Mart\'{i}n and Abhishek Joshi and Soroush Nasiriany and Yifeng Zhu and Kevin Lin},
   booktitle={arXiv preprint arXiv:2009.12293},
   year={2020}
 }