Feat: set up docs

[lalver1]

Closes #7

This PR sets up the documentation similar to https://github.com/compilerla/template-devcontainer

• configures mkdocs.yml, based on https://github.com/compilerla/template-devcontainer/blob/main/mkdocs.yml

• creates a docs/ directory

• creates docs/requirements.txt with dependencies

  mdx_truly_sane_lists
  mkdocs==1.6.1
  mkdocs-awesome-pages-plugin
  mkdocs-macros-plugin
  mkdocs-material==9.5.44
  mkdocs-redirects
  

• creates docs/README.md with basic information

• creates docs Compose service, starts with devcontainer, site is browsable locally

• creates GitHub Actions workflow that publishes docs to GitHub Pages

[thekaveman]

This looks great, I was able to bring up the docs service and website locally without any problems.

I have a suggestion to make this a little nicer inside the devcontainer, but otherwise nice job!