make man/docker.1.md consistent with docker --help

"Options:" listed when you run "docker --help" and "docker daemon
--help" do not match the options listed in "man/docker.1.md".  This PR
makes 'docker --help', 'docker daemon --help' and 'man docker' consistent.
Also 2 typo fixes.

Signed-off-by: Sally O'Malley <somalley@redhat.com>