Update the docker compose example to match the new cli

docker-compose.yaml

@@ -2,10 +2,18 @@ version: "3"
 
 
 services:
-  amonit:
+  manager:
     image: amonit
     volumes:
       - ./amonit.yaml:/amonit.yaml
+    command: manager
+
+  worker:
+    image: amonit
+    volumes_from: manager
+    command: worker
 
   redis:
     image: redis:latest
+    ports:
+      - 6379:6379