Add MKDocs

[SemyonSinchenko]

We discussed this topic with @MrPowers

It will look like the current quinn docs: https://mrpowers.github.io/quinn/

To see how it will look like locally just do the following:

1. checkout to my fork
2. poetry install --with mkdocs
3. poetry run mkdocs serve

About:

• the same like in quinn

• all the docsrtrings should be in sphinx format

  On branch main Your branch is up to date with 'origin/main'.

  Changes to be committed: new file: .github/workflows/mkdocs.yml modified: .gitignore modified: README.md new file: docs/gen_ref_pages.py new file: docs/index.md new file: mkdocs.yml modified: poetry.lock modified: pyproject.toml

[SemyonSinchenko]

@MrPowers after merge you should also activate GH pages for this repo and optionally add the link into About section.

[MrPowers]

Docs are live: https://mrpowers.github.io/mack/

Add them to the About section @SemyonSinchenko.