docs: Ask readers to install swh.model[cli] to fully use swh-identify
Otherwise, they will get an error asking them to install Click (or Dulwich if Click installed and they use -t snapshot)
Resolves T3226
Migrated from D5469 (view on Phabricator)
Staging instance, all changes can be removed at any time
Otherwise, they will get an error asking them to install Click (or Dulwich if Click installed and they use -t snapshot)
Resolves T3226
Migrated from D5469 (view on Phabricator)