Add v1.5 Release Announcement
Add v1.5 Release Announcement

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

Closes: #1205
Approved by: rhatdan

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