Update README.md

README.md

@@ -9,8 +9,6 @@ base_model:
 [![arXiv](https://img.shields.io/badge/arXiv-2505.19789-red.svg)](http://arxiv.org/abs/2505.19789)
 [![Website](https://img.shields.io/badge/Website-RLVLA-green.svg)](https://rlvla.github.io)
 
-## Introduction
-
-This is the warm-upped model, fine-tuned from `openvla/openvla-7b`.
-The warm-up dataset consists of 140 trajectories collected by octo-small and motion planner.
+This is the warm-upped model, fine-tuned from official `openvla/openvla-7b`.
+The warm-up dataset consists of 140 trajectories collected by octo-small and the motion planner.
 For more details, please refer to the [codebase](https://github.com/gen-robot/RL4VLA) and the [paper](http://arxiv.org/abs/2505.19789).