Mark components example as WIP
Mark components example as WIP

Since the required implementation for the components example has not
been merged yet, we must inform the users that this example is a work in
progress.

Signed-off-by: Alex Pyrgiotis <6383a799dda2258eec8fa26a3ce2ec8a7d552341@arrikto.com>

kubernetes-sigs/kustomize,kubernetes-sigs/kustomize,kubernetes-sigs/kustomize