This PR improves the model card for DISC by:
- Adding the `robotics` pipeline tag to the metadata.
- Including direct links to the [DISC paper](https://huggingface.co/papers/2605.20856) and the official [GitHub repository](https://github.com/ReNginx/DISC).
- Adding a sample evaluation command as found in the GitHub README.
- Retaining and organizing the existing checkpoint information and citation.
