Prototype better templating

@willkg More files involved here than there should be due to https://github.com/ossreleasefeed/Sandstone/commit/63094d73cb67007845e116f530f7e6621f339060

Biggest thing here is to review how the loading of the document section work and whether that makes contributing to the docs easier, and in general makes more sense and of course actually works! ;)

So, this is not done at all but, better to get it out there for you to look at then polishing more and more... so, if you are happy with this approach let's get it into the style guide branch and continue from there. Thx!