This PR significantly enhances the model card by:
- Adding the `pipeline_tag: unconditional-image-generation` for better discoverability on the Hub.
- Explicitly linking the model to its official Hugging Face paper page: [GAS: Improving Discretization of Diffusion ODEs via Generalized Adversarial Solver](https://huggingface.co/papers/2510.17699) in both metadata and content.
- Including a direct link to the GitHub repository (https://github.com/3145tttt/GAS) for easy access to the source code and training instructions.
- Providing the paper's abstract directly in the model card to give users a quick overview of the model's purpose and contributions.
- Incorporating a visual teaser image from the GitHub repository to showcase the model's capabilities.
- Adding a sample usage section with a code snippet adapted directly from the GitHub repository's inference instructions, enabling users to quickly understand how to generate images with the model.
