Update documentation

[kennylajara]

I read the documentation before looking at the GitHub page and I thought this package wasn't being actively developed. Here, it says you support Django 4.2 and so, while the docs say the latest supported version is 3.0 or so.

[Pythonian]

Same here. I think the documentation would have put off many who would have wanted to proceed with using the package. I was already discouraged, but my curiosity just decided to push me to check the github repo, and alas, this package has recent support!