Tooling

[ramanshah]

Review the current state of the art in pure-Python development tooling and implement a good tool stack for nerdydoc. This will be critical for an excellent contributor experience once I get a usable tool together.

Docs will be bootstrapped with nerdydoc, so there will be nothing external there. But:

• Unit tests: pytest?
• Linting: flake8? pep257? Other?
• Code coverage tooling?
• Test integration and multiple-Python test automation: Probably tox

Additionally, document the workflow for contributing once the tool stack is together.

[ramanshah]

Pipenv --- https://pipenv.readthedocs.io/en/latest/ --- seems like it solves a number of requirements.txt pain points.