Additional layout option examples

[dfreeman06]

From a code perspective, it looks fine, if somewhat hard to grasp... however, there's almost no way I'd be able to look at the docs and actually make one of these custom thingers work. I think refining a few, targeted examples, for e.g. the edge collapsing, would be helpful... linking to the source is fine.

Originally posted by @nrbgt in #24 (comment)