Update CHANGELOG.md
Update CHANGELOG.md

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

Closes: #865
Approved by: TomSweeneyRedHat

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