- add singular alias to get commands
- allow filtering the get commands result by resource name
- add the image commands to mkdocs index
Signed-off-by: Stefan Prodan <stefan.prodan@gmail.com>
This means all the sub-subcommands can drop the `image-` prefix,
making them shorter and more fluent.
E.g.,
flux create image policy
rather than
flux create auto image-policy
Signed-off-by: Michael Bridgen <michael@weave.works>
