Add robotics pipeline tag, library name, license, and link to GitHub repository

Hi! This PR improves the model card by:
- Adding the `robotics` pipeline tag to make the model discoverable in the robotics section of the Hub.
- Setting the `library_name` to `transformers` as the model uses auto-mappings compatible with the library.
- Defining the `license` as `mit` based on the official GitHub repository.
- Linking to the official GitHub repository for the code.

README.md

@@ -1,6 +1,12 @@
-This repository contains the checkpoint trained on spatial LIBERO task suite, as described in VOTE: Vision-Language-Action Optimization with Trajectory Ensemble Voting https://arxiv.org/abs/2507.05116
+---
+license: mit
+library_name: transformers
+pipeline_tag: robotics
+---
 
+This repository contains the checkpoint trained on spatial LIBERO task suite, as described in [VOTE: Vision-Language-Action Optimization with Trajectory Ensemble Voting](https://arxiv.org/abs/2507.05116).
 
+The official code is available in the [GitHub Repository](https://github.com/LukeLIN-web/VOTE).
 
 ## Citation