https://pages.github.com looks interesting. I haven’t used this before, so can’t say much yet about it. But I’m sure we’ll manage to find a way to keep docs in sync on both code and created doc sides. Probably utilising somehow the pull requests to make actual documentation changes to the sources.
I’m gradually working on my part of the documentation as part of my learning process while I work on RhinoCycles (Rhino plug-in for the Cycles renderer). I have noted what I’ve learned so far and it is slowly morphing into a primer doc into SDK/RDK/RhinoCommon.
RhinoCycles is coming along nicely, so I expect to have more time during autumn 2014 to put into actually writing some sane text for the primer, and on documentation in general.