docker is required for running the example

soul2zimate · soul2zimate · commit d4a2117220b8 · 2022-05-26T09:58:25.000+08:00
diff --git a/chapter-7/order-example/README.md b/chapter-7/order-example/README.md
@@ -5,6 +5,8 @@ It exposes the `/shop` resource
 
 ## Dev
 
+Make sure the `Docker` daemon is up and running.
+
 You can run this application in dev mode using:
 
 ```shell
