Update README.md

Link to paper page

README.md

@@ -8,4 +8,16 @@ tags:
 pretty_name: Off-the-Grid MARL
 ---
 
-![OG-MARL logo](https://github.com/instadeepai/og-marl/blob/main/docs/assets/og_marl_logo.png?raw=true)
+![OG-MARL logo](https://github.com/instadeepai/og-marl/blob/main/docs/assets/og_marl_logo.png?raw=true)
+
+```
+@misc{formanek2024puttingdatacentreoffline,
+      title={Putting Data at the Centre of Offline Multi-Agent Reinforcement Learning}, 
+      author={Claude Formanek and Louise Beyers and Callum Rhys Tilbury and Jonathan P. Shock and Arnu Pretorius},
+      year={2024},
+      eprint={2409.12001},
+      archivePrefix={arXiv},
+      primaryClass={cs.LG},
+      url={https://arxiv.org/abs/2409.12001}, 
+}
+```