* Add support for multi-containers
* Update examples
* Fix UpdateContainers to match by name
* Add experimental note & tests
* Rename flag to --extra-containers
* Fix formatting
* Fix flag renaming leftovers
* Update pkg/kn/flags/podspec_test.go
Co-authored-by: Roland Huß <rhuss@redhat.com>
Co-authored-by: Roland Huß <rhuss@redhat.com>