docs: Document local repository usage
docs: Document local repository usage

Add an example howto setup a cloud with mkcloud and locally
synced repositories.

vmoravec/automation,vmoravec/automation,aspiers/automation,gosipyan/automation,aspiers/automation,vmoravec/automation,aspiers/automation,aspiers/automation,gosipyan/automation,gosipyan/automation,SUSE-Cloud/automation,gosipyan/automation,SUSE-Cloud/automation,SUSE-Cloud/automation,SUSE-Cloud/automation,vmoravec/automation