Feature/docs

[justindujardin]

Update the project readme to include a project description and API/CLI documentation.

Changes:

• [x] Use typer-cli to generate docs for the CLI app
• [x] Use mathy_pydoc to generate docs for the Pathy APIs
• [x] Use githooks to auto-generate the docs when a code change happens

[justindujardin]

:tada: This PR is included in version 0.2.0 :tada:

The release is available on GitHub release

Your semantic-release bot :package::rocket: