update readme

README.md

@@ -2,7 +2,7 @@
 
 - **Paper**: "LLaMAX: Scaling Linguistic Horizons of LLM by Enhancing Translation Capabilities Beyond 100 Languages"
 
-- **Link**: 
+- **Link**: https://arxiv.org/pdf/2407.05975
 
 - **Repository**: https://github.com/CONE-MT/LLaMAX/
 
@@ -88,5 +88,13 @@ We implement multiple versions of the LLaMAX model, the model links are as follo
 If our model helps your work, please cite this paper:
 
 ```
-
+@misc{lu2024llamaxscalinglinguistichorizons,
+      title={LLaMAX: Scaling Linguistic Horizons of LLM by Enhancing Translation Capabilities Beyond 100 Languages}, 
+      author={Yinquan Lu and Wenhao Zhu and Lei Li and Yu Qiao and Fei Yuan},
+      year={2024},
+      eprint={2407.05975},
+      archivePrefix={arXiv},
+      primaryClass={cs.CL},
+      url={https://arxiv.org/abs/2407.05975}, 
+}
 ```