Add Docstrings to `pyiceberg/table/inspect.py`

[sungwy]

[geekusa33]

I would like to try and complete this one please.

[sungwy]

Assigned it to you @askalik 🎉

[github-actions]

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[ayushjariyal]

Hey @kevinjqliu , I’d like to work on this issue if it’s still open

[kevinjqliu]

@ayushjariyal i believe so, feel free to open a PR