This PR significantly enhances the dataset card for OceanGym by:
- Adding `task_categories: ['robotics']` to the metadata for better discoverability.
- Enriching the `tags` with `['robotics', 'benchmark', 'environment', 'underwater', 'multi-modal', 'mllm', 'large-language-models']` to provide more descriptive context.
- Updating the paper link to the official Hugging Face Papers page (`https://huggingface.co/papers/2509.26536`) and changing its label to "Paper".
- Adding a direct link to the GitHub repository (`https://github.com/OceanGPT/OceanGym`).
- Cleaning up the existing Google Drive link by removing the `?usp=sharing` suffix.
- Adding the Baidu Drive link from the GitHub README.
- Including the comprehensive paper abstract in the dataset card for a clearer overview.
- Updating the reference to the paper within the "Decision Task" section to point to the new Hugging Face paper link.
- Adding a new "Datasets" section, mirroring the GitHub README, to provide spec…
