[MERGE] minor doc clarification for decentralized with shared-mainline

[Ian Clatworthy]

John Arbash Meinel wrote:

> I'm a bit mixed on this documentation. I'd *like* to at least give an
> example of
> how you would set it up, etc. However, all of these sub-chapters seem to be
> short, and they are given very early on. So it doesn't seem like the
> place to go
> into an in-depth discussion.

That's right.

> Anyway, I think this helps a bit with clarification. I would be
> interested to
> know where we can put the "meat" of different workflows.

In a later chapter. Doing exactly that in on my list of doc TODOs. Hmm -
perhaps I should bite the bullet and Just Do It this week for 1.5.
Even so, your change is fine.

bb: approve

Ian C.