docs(init): Add initial docs and config #24

[imAsparky]

Create the docs folder and sphinx project with separate source and build folders.

Split out requirements into docs/requirements and add include with -r in project requirements.

Add README to the index page.

Add .readthedocs.yaml file for doc builds.

Add initial config in conf.py.

Uses furo, copybutton and monokai pygments.

Includes intersphinx mapping to python and django.

closes #24