Fix docs YAML generation setting "kubernetes" for "swarm"
Fix docs YAML generation setting "kubernetes" for "swarm"

Due to a copy/paste error, commands annotated with "swarm"
were incorrectly setting the "kubernetes" property.

Signed-off-by: Sebastiaan van Stijn <64b2b6d12bfe4baae7dad3d018f8cbf6b0e7a044@gone.nl>

docker/cli,cpuguy83/cli,dnephin/cli,docker/cli,thaJeztah/cli,dnephin/cli,cpuguy83/cli,thaJeztah/cli