Adding comment to docker-cleanup.sh

Author: sc2automation

docker-cleanup.sh

@@ -1,3 +1,7 @@
 #!/usr/bin/env bash
 
+#
+# This cleans up runtime images that have exited and prevents accumulating
+# a lot of docker image bloat on your local system
+#
 docker rm $(docker ps -qaf status=exited)