git lfs action

namurphy added a commit to PlasmaPy/PlasmaPy-NEI that referenced this issue Jan 19, 2021 * Copy over testing workflow from PlasmaPy * Remove tentatively added conda python package thing * Remove Python 3.6 tests from GitHub Actions file * Copy over tox.ini from PlasmaPy * Remove Python 3.6 stuff from tox.ini * Update copyright years * Replace old pytest config with current one The previous one referred to functionality of pytest-doctestplus, astropy's testing plugin, which we've gotten rid of in plasmapy proper a while ago.