This PR adds a comprehensive dataset card for the "Riemannian generative decoder" dataset.
It includes:
- A link to the paper: https://huggingface.co/papers/2506.19133
- A link to the project page: https://yhsure.github.io/riemannian-generative-decoder
- A link to the code repository: https://github.com/yhsure/riemannian-generative-decoder
- The paper abstract
- A description of the dataset contents for the three case studies
- Relevant metadata, including `task_categories`, `tags`, and `language`
- A detailed sample usage section, derived directly from the GitHub README, demonstrating how to set up the environment, run the notebooks, and (optionally) scrape new mitochondrial sequences.
- The BibTeX citation.
