v1.0.0: Add GitHub Actions workflow for PyPI publishing

This workflow automates the process of publishing a Python package to PyPI when a version tag is pushed. It includes steps for building the package and uploading the distribution.

v0.3.0

Delete tests directory

v0.2.1: Document changes for version 0.2.1

Update CHANGELOG for version 0.2.1 with fixes and additions.

v0.2.0

Add changelog and release URLs to pyproject.toml