Quickstart instructions as written would serve an empty directory.
They instruct the user to install Jekyll (:metal), `cd` to a directory that may not exist, and then run `jekyll serve` (:hurtrealbad:).
Instead, lets have them run `jekyll new` to stand up a scaffold site, so they can see how things work and poke around a bit.
It's one more command, but IMHO a better user experience for someone just getting started.
This is the big site redesign by @cobyism. To work with the new
site deployment mechanism, it is being copied from the gh-pages
branch of that PR into the existing site dir. Before we finally
deploy the new site, we should remember to merge #583 so that we
keep all the history from that PR.
