Update README.md

README.md

@@ -23,7 +23,7 @@ The reward model used during training was the [Tulu v2.5 13B preference mixture
 We then used UltraFeedback prompts during PPO training.
 
 For more details, read the paper:
-[Unpacking DPO and PPO: Disentangling Best Practices for Learning from Preference Feedback](https://link.todo).
+[Unpacking DPO and PPO: Disentangling Best Practices for Learning from Preference Feedback](https://arxiv.org/abs/2406.09279).
 
 
 ## .Model description
@@ -84,6 +84,7 @@ If you find Tulu 2.5 is useful in your work, please cite it with:
       title={{Unpacking DPO and PPO: Disentangling Best Practices for Learning from Preference Feedback}}, 
       author={{Hamish Ivison and Yizhong Wang and Jiacheng Liu and Ellen Wu and Valentina Pyatkin and Nathan Lambert and Yejin Choi and Noah A. Smith and Hannaneh Hajishirzi}}
       year={2024},
+      eprint={2406.09279},
       archivePrefix={arXiv},
       primaryClass={cs.CL}
 }