Update README.md

update with arxiv id.

Former-commit-id: 6c7abdf33628ad09b0fa6adfe4d2047406c34843

README.md

@@ -45,7 +45,7 @@ If you find this project useful in your research, please consider citing:
 @article{reason-seg,
   title={LISA: Reasoning Segmentation Via Large Language Model},
   author={Xin Lai and Zhuotao Tian and Yukang Chen and Yanwei Li and Yuhui Yuan and Shu Liu and Jiaya Jia},
-  journal={arXiv:},
+  journal={arXiv:2308.00692},
   year={2023}
 }