Add dataset upload guide for LLMs (experimental guide) (#1830)
* Add comprehensive dataset upload guide for LLMs (experimental guide)
- Add new guide specifically designed to help LLMs assist users with dataset uploads
- Covers decision workflow, built-in loaders, custom format conversion, and validation
- Includes practical examples for various data types and upload scenarios
- Add entry to table of contents under Datasets section
* Add 'Working Without File Access' section to LLM guide
- Add commands for LLMs to request when they don't have direct file access
- Includes tree/find commands for structure, du/ls for sizes, head for data preview
- Helps LLMs guide users on web interfaces (Claude, ChatGPT browser)
- Placed early in guide for immediate visibility
* Fix toctree to only include LLM guide entry
- Remove unintended changes from other work
- Keep only the addition of datasets-upload-guide-llm entry
* Add machine-readable hub limits in YAML format
- Add structured YAML block with Hub constraints for LLM parsing
- Helps prevent hallucination of limits by providing exact values
- Include comments explaining each limit
- Keep human-readable summary alongside machine format
* address comments
* Update docs/hub/_toctree.yml
Co-authored-by: Julien Chaumond <julien@huggingface.co>
* nicer tip formatting
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Co-authored-by: Julien Chaumond <julien@huggingface.co>
