Cool explain() added to docs.

[Marko Rodriguez]

Hi,

I just added the following example to the docs. I thought people might like to 
see TinkerPop’s traversal strategies in action.

        https://gist.github.com/okram/512db05ec9a6f34a8d51260fa070ffaa 
<https://gist.github.com/okram/512db05ec9a6f34a8d51260fa070ffaa>

Enjoy,
Marko.

http://markorodriguez.com