Link to the flake8 config docs is broken here:

https://github.com/amontalenti/elements-of-python-style/blame/master/README.md#L36

Would have offered a PR, but there were a couple of pages that might have fulfilled the intent:

• https://flake8.pycqa.org/en/latest/user/configuration.html
• https://flake8.pycqa.org/en/latest/user/options.html