Releasing to PyPi and Test PyPi

In the Makefile, there are two commands:

make release: release to prod PyPi
make release-test: release to test PyPi

When running either commands, you're prompted for a username and password. When using an API token, fill out the following:

username = __token__ (no, this is not a placeholder, the username literally is __token__)
password = <api_token> (including pypi- part)