sphinx rtd docs

[ehrenb]

• [x] Python Typing, doctrings
  • [x] base class
  • [x] models
• [x] architecture diagram
• [x] migrate MD docs to RST
• [x] Sphinx RDT w/ Dockerfile and web service
• [x] move Dockerfile.docs and docs/ to a separate repository. As it stands, since the docs image depends on base-alpine i wont be able to trigger a downstream build because both code bases are in the same repository