Move all documentation to this repo

[tsuberim]

Make this repo the only place for documentation for the entire DAOstack project.

How it will work:

• Documentation from all subprojects will be in this repo in a seperate folder (/arc for Arc, /arc-js for Arc.js)
• Documentation generated from source code will be generated locally and committed to this repo (not committed to subproject repo).
• A CI service will compile and deploy a single website to the gh-pages branch of this repo.

Benefits:

• Easy to document cross-cutting concerns (e.g. an end-to-end tutorial on how to use the whole DAOstack together).
• Easier linking between subprojects (with the ability to check for broken links between subprojects).
• Consistent look & feel using the same website.
• Removing unnecessary complexity from the subprojects repos i.e managing the website.
• Supports switching markdown compilers if we need to in the future (e.g. switch to Jekyll or read the docs) or changing the behavior of the website.

[dkent600]

@dev-matan-tsuberi Can you describe how one does the "generated locally and committed to this repo" part? Thanks.

[tsuberim]

@dkent600 This is sub-project specific. In arc.js for example you would use typedoc to generate the markdown, in Arc wer'e using soldoc. Once generated you'd commit the markdown to docs to publish it.