Fix up Tutorial 3 to account for format
Fix up Tutorial 3 to account for format

Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com>

Closes: #1073
Approved by: rhatdan

rhatdan/buildah,nalind/buildah,projectatomic/buildah,rhatdan/buildah,projectatomic/buildah,nalind/buildah-1,nalind/buildah-1,rhatdan/buildah,ipbabble/buildah,ipbabble/buildah,projectatomic/buildah,nalind/buildah,TomSweeneyRedHat/buildah,nalind/buildah-1,TomSweeneyRedHat/buildah,TomSweeneyRedHat/buildah