Automated Tests: Continuous Integration and Testing

[hayesall]

Recommendation: Run tests automatically on a push. GitHub Actions or a Continuous Integration (CI) service should help here (Circle-CI, Travis-CI, AppVeyor, etc.)

[elwinter]

I configured a GitHub action to automatically run the test suite using pytest and tox. The runs are triggered on a repository push. I'll remove one of the tests runs once I decide which is more useful, report-wise.