docs: fix generated YAML due to trailing whitespace
docs: fix generated YAML due to trailing whitespace

If a file contains trailing whitespace, the YAML generator uses a
compact format, which is hard to read.

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

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