Wiki Rewrite

[sam-tredgett]

There's a wiki functionality available built into GitHub as part of a given repository. We ought to use this to host our Wiki rather than just storing markdown files within the project.

Our documentation is rather thin at present so porting this over is easier now than in the future, and I believe this gives us a hosted site that we can navigate as a web-page.

[GiveMePseudonyms]

I'll move what we have over and delete the rest from readme.md