feat(docs): Create community datasets docs page

[rob-pitkin]

Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Creates the community datasets page in the docs website. Requires adding PyYAML as a requirement.

Type of change

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• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

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Checklist:

• I have run the pre-commit checks with pre-commit run --all-files (see CONTRIBUTING.md instructions to set it up)
• I have run pytest -v and no errors are present.
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I solved any possible warnings that pytest -v has generated that are related to my code to the best of my knowledge.
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[younik]

Thanks for this, it looks good!

One important change: we should also generate the dataset page, and clicking on the card should open it (instead of the hugging face link as it is now).

You can reuse the function in this file:

https://github.com/Farama-Foundation/Minari/blob/main/docs/_scripts/gen_dataset_md.py

[younik]

it would be nice to add an extra "card", saying "Add your dataset here", that, if clicked, will point you to the README to add the dataset

[younik]

and finally, from here to bottom, I think we should reuse the code in gen_dataset_md so dataset groups (even if nested) are handled correctly. You may need to refactor main() to use a customizable remote entry point, like hf://user/dataset instead of using our remote_datasets