Use Docker multistate-build to containerize packaging

README.md

@@ -26,6 +26,25 @@ That's it. A healthcheck endpoint can be pinned with
 curl -v localhost:8080/v1/data/healthcheck
 ```
 
+which would gave
+
+```console
+$ curl -v localhost:8080/v1/data/healthcheck
+*   Trying 127.0.0.1:8080...
+* Connected to localhost (127.0.0.1) port 8080 (#0)
+> GET /v1/data/healthcheck HTTP/1.1
+> Host: localhost:8080
+> User-Agent: curl/7.85.0
+> Accept: */*
+>
+* Mark bundle as not supporting multiuse
+< HTTP/1.1 200 OK
+< Content-Length: 0
+< Server: Jetty(11.0.15)
+<
+* Connection #0 to host localhost left intact
+```
+
 Developer can now start adding business values without repeating the time-consuming scaffolding works. To proceed from
 here, including getting and developing the webservice source code, please refer to the [documentation][Documentation]
 for details.