docs(chapter): Add chapter on consistent coding style and conventions

[lsetiawan]

Overview

This section should introduce to the various coding conventions. For python mainly the pep8 and numpydoc or googledoc.

• [ ] #45
• [ ] #44

Resources

• https://peps.python.org/pep-0008/
• https://numpydoc.readthedocs.io/en/latest/format.html
• https://google.github.io/styleguide/pyguide.html