RELEASING.md

Release Procedure

• Update CHANGES.rst (check git diff vOLD)
• Check that GitHub CI is passing
• Check that docs are building
• Make a new git tag:

$ git tag -a vX.Y.Z -m 'Version X.Y.Z'
$ git push origin vX.Y.Z

• Check that GitHub Actions built, tested, and uploaded the release to PyPI
• Make a GitHub release of tag vX.Y.Z: https://github.com/abacusorg/abacusutils/releases