[17.06] CLI reference docs cherry-picks (and 1 completion fix)

[thaJeztah]

cherry-picks of;

• Update the cp command docs to include archive docker/cli#223 docker/cli@e4c70d3 ("Update the cp command docs to include archive")
• Fix typo (proceed -> precede) docker/cli#308 docker/cli@4f3a8ae ("Fix typo (proceed -> precede)")
• docs: add filter scope for command events and more cluster events docker/cli#314 docker/cli@8639c9b ("docs: add filter scope for command events and more cluster events")
• Fix filters displaying for docker search docker/cli#331 docker/cli@bd64ad2 ("Fix filters displaying for docker search")
• Improve docs about ARG in FROM docker/cli#333 docker/cli@2880030, docker/cli@ad5d035 ("Improve docs about ARG in FROM")
• Service privileges: CLI reference docs & completion docker/cli#338 docker/cli@5cc7ac29901f5ca08ca089d2e8ff1b8858c75470("Service privileges: CLI reference docs & completion")
• fixed word network on volume_ls.md docker/cli#375 docker/cli@f5bca7a

ping @mstanleyjones @tiborvass

[vieux]

LGTM ping @mstanleyjones