Adjust some of the documenation to better reflect reality.
- Reflect how prepare stage builds a source RPM repo and the
building stage builds a binary RPM repo.
- Restructure to better show the architecture page in the initial
table of contents instead of hidden under the developer section.
- Adjust line length to be in the < 80 restriction just for ease
of reading and editing...
- Adjust some of the links...
Change-Id: Idb0ca60e20ea65d743e601c38bd89c0b9392a231
ed7f88ef51