Copyedit builds

Trying again since the first PR seems to have been lost.

Docker-DCO-1.1-Signed-off-by: Fred Lifton fred.lifton@docker.com (github: fredlf)
If we refer to them in the singular, it is confusing because it implies that only one of them can exist. Not sure what you mean AmE regs. American English? If so, I see no issue.