add `huggingface_hub` smart rate limit handling section in Rate Limits doc (#2089)
* add python sdk smart rate limit handling section
* fix
* Update docs/hub/rate-limits.md
Co-authored-by: Julien Chaumond <julien@huggingface.co>
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Co-authored-by: Julien Chaumond <julien@huggingface.co>