Comment 1 for bug 1917493

Also, the Code tab of https://launchpad.net/charm-k8s-mattermost/+oci/mattermost ought to go to https://code.launchpad.net/charm-k8s-mattermost/+oci/mattermost instead. (It's possible that this would be sufficient, or maybe we should also consider having OCI project repositories show up in the pillar's code index too.)