This release features some fixes for upgrading to migration-capable apps

that use MoveToDjangoMigrations where the app isn't yet in the

database.
It also fixes a comparison issue between stored signatures and runtime

copies of UniqueConstraint.
The docs have been updated to build with modern Sphinx and to reference

Django 4.2 docs. The README has been updated to include our now-standard

version/made-with badges.

Built the docs. Checked for spelling errors, build errors, and bad links.