The "Pythons Supported" section of docs/intro.rst says "Python 3.6+ is officially supported."

This seems a bit out of date. Checking the release notes, it looks to me like:

• The last version to support Python 3.6 was tablib 3.1.0 (see Drop support for EOL Python 3.6 #513)
• The last version to support Python 3.7 was tablib 3.4.0 (see Drop support for EOL Python 3.7 #551)
• The last version to support Python 3.8 was tablib 3.6.1 (see Drop support for Python 3.8 #598)

I've integrated tablib into code bases that can't upgrade their Python version and it's a little confusing to have to figure out why the latest version of tablib doesn't work.

A quick fix would be to just update the language to say "Python 3.9+ is officially supported".

Or, if Python 3.6 is still considered officially supported since tablib 3.1.0 supports it, maybe add a couple lines documenting what versions of tablib one should use for older Pythons.