Edits and fixes based on review.

Docker-DCO-1.1-Signed-off-by: Fred Lifton <fred.lifton@docker.com> (github: fredlf)
Sounds reasonable from that point of view. The reason I added the note is that I, for one, am not so familiar with the huge amount of licenses available (and what they imply). The link features some clear descriptions on the differences between licenses (and also additional information on "how to pick the right license").

I'm fine either way, but wanted to clarify my reason for adding the comment :)