add arxiv

README.md

@@ -19,7 +19,7 @@ language:
 <p align="center">
 - <a href="https://www.nexa4ai.com/" target="_blank">Nexa AI Website</a>
 - <a href="https://github.com/NexaAI/octopus-v4" target="_blank">Octopus-v4 Github</a>
-- <a href="https://arxiv.org/abs/2404.01744" target="_blank">ArXiv</a>
+- <a href="http://arxiv.org/abs/2404.19296" target="_blank">ArXiv</a>
 - <a href="https://graph.nexa4ai.com/" target="_blank">Graph demo</a>
 </p>
 
@@ -147,10 +147,10 @@ We thank the Microsoft team for their amazing model!
 ## Citation
 ```
 @misc{chen2024octopus,
-      title={Octopus v2: On-device language model for super agent}, 
+      title={Octopus v4: Graph of language models}, 
       author={Wei Chen and Zhiyuan Li},
       year={2024},
-      eprint={2404.01744},
+      eprint={2404.19296},
       archivePrefix={arXiv},
       primaryClass={cs.CL}
 }