[CORD-3125] Adding blacklist and disabling ONUs

Change-Id: If12d799ea143627d3241bb67f7c6269c5ca89dc6
diff --git a/Dockerfile.synchronizer b/Dockerfile.synchronizer
index ec224d8..ebc879e 100644
--- a/Dockerfile.synchronizer
+++ b/Dockerfile.synchronizer
@@ -12,7 +12,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-# xosproject/volt-synchronizer
+# docker build -t xosproject/hippie-oss-synchronizer:candidate -f Dockerfile.synchronizer .
+
+# xosproject/hippie-oss-synchronizer
 
 FROM xosproject/xos-synchronizer-base:candidate