Allow connection objects in `from_sql` + small doc improvement
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2022-10-07T12:44:56Z
https://github.com/huggingface/datasets/pull/5091#issuecomment-1271544701
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2022-10-09T13:19:15Z
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Allow connection objects in `from_sql` (emit a warning that they are cachable) and add a tip that explains the format of the con parameter when provided as a URI string.

PS: ~~This PR contains a parameter link, so https://github.com/huggingface/doc-builder/pull/311 needs to be merged before it's "ready for review".~~ Done!