docs-v2

docs v2:

• Create markdown/json CRUD API at sensible-server (in prod, must be authenticated with GitHub, on localhost, just make changes locally)
• Render CRUD of md in docs section
• on docs.sensiblestack.com without given any api, just get the sensible docs, statically generated, md obtained from sensible.leckrapi.xyz
• when given an api, get docs from there and generate pages at build-time.