Add godoc-style docstrings to Cmd... methods

Signed-off-by: Peggy Li <peggyli.224@gmail.com>
Upstream-commit: b5d0380108dde9e96d51bb01821860a0799dee0d
Component: engine

components/engine/api/client/unpause.go

@@ -7,6 +7,9 @@ import (
 	"github.com/docker/docker/utils"
 )
 
+// CmdUnpause unpauses all processes within a container, for one or more containers.
+//
+// Usage: docker unpause CONTAINER [CONTAINER...]
 func (cli *DockerCli) CmdUnpause(args ...string) error {
 	cmd := cli.Subcmd("unpause", "CONTAINER [CONTAINER...]", "Unpause all processes within a container", true)
 	cmd.Require(flag.Min, 1)