This pull request significantly enhances the dataset card for `NautData` by:
- Adding relevant `task_categories`: `image-classification`, `object-detection`, `image-to-text`, `question-answering`, `image-text-to-text`.
- Including `language: en` and descriptive `tags`: `underwater`, `multimodal`, `LMM`, `instruction-following`, `scene-understanding`.
- Adding `size_categories: 1M<n<10M` to reflect the dataset's scale.
- Providing a comprehensive description of the dataset, its purpose, and the tasks it supports, clarifying that this repository (`Wang017/NautData`) holds the images and linking to `Wang017/NautData-Instruct` for annotations.
- Including direct links to the associated paper ([NAUTILUS: A Large Multimodal Model for Underwater Scene Understanding](https://huggingface.co/papers/2510.27481)), the project page (https://h-embodvis.github.io/NAUTILUS/), and the GitHub repository (https://github.com/H-EmbodVis/NAUTILUS).
- Adding a "Sample Usage" section with practica…
