Update README.md

[lucas-lm]

Changelog from version 2.0.0 says that support for Python 3.6 was removed. Also, TOML file only refers to Python >=3.7

[hauntsaninja]

Thanks for spotting this!

We should probably update the version spec in this section to tomli >= 1.2.3 to make it more "seamless" with tomllib.

(Also technically tomli only dropped 3.6 support in v2, so the instructions here would still work for 3.6. About 6% of tomli downloads are on 3.6, so it's possible there's still some value here)

[hukkin]

Hello!

Please see #194

I don't think we need these changes. The instructions should work as they are, because pip (and any other well-behaved installer) will read the requires-python metadata and install tomli < 2.0.0on Python 3.6. Tomli 1.2.3 has zero known bugs, and were someone to find one, I'd have no problem making a 1.2.4 bugfix release.

We should probably update the version spec in this section to tomli >= 1.2.3 to make it more "seamless" with tomllib.

The current tomli >= 1.1.0 should suffice IMO because Tomli 1.1.0 doesn't lack any features that would be present in 1.2.*. The 1.2 minor bump only adds a deprecation.

[hauntsaninja]

Technically 1.2.3 added support for lower case "t" and "z" in datetimes

[hukkin]

Yeah, I guess there's always some ambiguity whether a change is a feature or a bugfix. It was never my intent to not respect the spec here so this felt like a bugfix to me at the time.

Anyways, v1.1.0 has the same API as up-to-date Tomli, and should work fine 99.9% of the time, so I don't see much need to change these numbers. An installer should prefer the latest compatible release anyways so I think it's better to be permissive.