Installed portainer into lab1 on the live system; several slide commands were
wrong. The verb is 'network-manager add', not 'network-manager zone add', and
there is no 'srv' zone here — the live service zone is 'makerfloss'. Status
verbs need the effective name 'portainer-lab1', while 'module add' takes the
base name. The published host is portainer-lab1.lab1.makerfloss.eu, not
portainer.lab1.makerfloss.eu. Adds the repository registration to Demo 2, which
the deck had never shown.
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