No problem chemapop. Cocoonjs and Crosswalk are both wrappers used for C2 games so that the games are able to be played in mobile games. Cocoonjs was the preferred choice quite some time ago, but Crosswalk now looks like it is the best option.
Anyway, to get started, you can read the link below.
This is also the same link if you were to go to export in C2, choose Android and click on the learn more about Crosswalk. Currently they are experiencing some server problem as mentioned by their representatives, but am pretty confident it will be back to normal very soon.