use nats-docker

Author: derekcollison

Diff for: docker/README.md

@@ -1,4 +1,6 @@
-# [Dockerized] (http://www.docker.com) [gnatsd](https://registry.hub.docker.com/u/apcera/gnatsd/)
+# [Dockerized] (http://www.docker.com) [nats](https://registry.hub.docker.com/_/nats/)
+
+This is deprecated, please use [nats-docker](https://github.com/nats-io/nats-docker)
 
 A docker image for gnatsd. This is created as a single static executable, so there are multiple passes through Docker to first build the static executable and then to package it under an empty (scratch) base image.