Fix CMD --ignored-param1 example
Fix CMD --ignored-param1 example

Co-authored-by: Sebastiaan van Stijn <64b2b6d12bfe4baae7dad3d018f8cbf6b0e7a044@gone.nl>
Signed-off-by: Stefan Scherer <c4a78f471cbb65d3c8ad267a930132b89ad6d2ce@docker.com>

cpuguy83/cli,thaJeztah/cli,cpuguy83/cli,thaJeztah/cli,docker/cli,docker/cli