doc: move documentation to wiki

[h4sh3d]

Documentation is moved to the project's wiki to ease of maintenance.

[zkao]

I'm not convinced about this one, because then the docs aren't in a git repo, that a dev clones and can read in his editor. Additionally, it seems fragile to further depend on third party infrastructure (now to read the docs)

[h4sh3d]

If a dev clone that repo he has an access to the wiki, if you want we can add the wiki git as an indication in the readme so he can also clone the doc.

[Lederstrumpf]

I'm not convinced about this one, because then the docs aren't in a git repo, that a dev clones and can read in his editor. Additionally, it seems fragile to further depend on third party infrastructure (now to read the docs)

If you had opened up the wiki, you'd have seen it's still markdown in a git repo (with a cloning link), just more accessible, in particular for non-devs. No fragility induced by moving it to its own repo where GitHub can present it with a convenient navigation sidepanel.

[Lederstrumpf]

ACK - good call to merge our info resources.

On a related (to reviewing this) & fun note, I can really recommend delta as a diff engine: https://github.com/dandavison/delta