autorestart of the registry

Change-Id: I86ac2751bd28b3823c5955cd79e72edc79828008
diff --git a/roles/registry/templates/registry-compose.yml.j2 b/roles/registry/templates/registry-compose.yml.j2
index f4702c5..61bccc4 100644
--- a/roles/registry/templates/registry-compose.yml.j2
+++ b/roles/registry/templates/registry-compose.yml.j2
@@ -16,3 +16,4 @@
   command: serve /conf/config.yml
   ports:
     - "5001:5000"
+  restart: unless-stopped