Dockerfile.dev: Add -t to fix example command
# verification of COSA code.
#
# This moves the build time from ~15 minutes to ~3-5 minutes.
-# Example: buildah bud -f Dockerfile.dev localhost/cosa-test .
+# Example: buildah bud -f Dockerfile.dev -t localhost/cosa-test .
FROM quay.io/coreos-assembler/coreos-assembler:latest
WORKDIR /root/containerbuild
