Document loading from relative path
_The documentation is not available anymore as the PR was closed or merged._ Thanks for the feedback!

I agree that adding it to `load_hub.mdx` is probably a bit too specific, especially for beginners reading the tutorials. Since this clarification is closely related to loading from the Hub (the only difference being the presence/absence of a loading script), I think it makes the most sense to keep it somewhere in `loading.mdx`. What do you think about adding a Warning in Loading >>> Hugging Face Hub that explains the difference between relative/absolute paths when there is a script? What about updating the section about "manual download" ? I think it goes there no ?

https://huggingface.co/docs/datasets/v2.4.0/en/loading#manual-download Updated the manual download section :) Thanks ! Pinging @albertvillanova to review this change, and then I think we're good to merge
This PR describes loading a dataset from the Hub by specifying a relative path in `data_dir` or `data_files` in `load_dataset` (see #4757).