Update README.md

Official release of M3DT model checkpoints for the paper

[Mastering Massive Multi-Task Reinforcement Learning via Mixture-of-Expert Decision Transformer](https://arxiv.org/abs/2505.24378)

**Quick links:** [[Paper]](https://arxiv.org/abs/2505.24378) [[Dataset]](https://drive.google.com/file/d/14Tp3WLCTq6NEaUnuDD1v2qcGou70Xk8I/view?usp=drive_link)[[Code]](https://github.com/KongYilun/M3DT/tree/main)

README.md

@@ -1,7 +1,5 @@
 ---
 license: mit
-datasets:
-- Yilun-Kong/MTRL-mt160
 tags:
 - reinforcement learning
 - multi-task