This PR significantly enhances the model card by:
- Adding `pipeline_tag: text-to-image` for improved discoverability on the Hugging Face Hub.
- Specifying `library_name: diffusers` to enable the automated "Use in Diffusers" widget, based on the model's `stable-diffusion-v1-4` base.
- Including a detailed "Model Description" section, summarizing the paper's approach.
- Providing a "Sample Usage" section with command-line examples for image sampling, directly extracted from the GitHub repository to guide users.
- Adding a "Citation" section with the BibTeX entry for proper academic attribution.
The existing arXiv paper link in the content has been retained as per the guidelines.
Please review and merge if these improvements are satisfactory.
