adding command to locally server app with fastboot server

Author: kiwiupover

README.md

@@ -28,6 +28,16 @@ To run the website locally:
 * `ember build` (development)
 * `ember build --environment production` (production)
 
+### Fastboot Express Server
+
+This site is served in production by an express.js application
+[fastboot-server](https://github.com/ember-fastboot/fastboot-website/blob/master/fastboot-server.js). To serve the app using the `fastboot-server` use the following command which will
+build the app with production `env` and serve the app at [localhost:3000](http://localhost:300)
+
+```sh
+npm run server:node
+```
+
 ### Deploying
 
-Pull requests merged into master are automatically deployed to Heroku via Travis.
+Pull requests merged into master are automatically deployed to Heroku.

package.json

@@ -15,7 +15,8 @@
     "lint:hbs": "ember-template-lint .",
     "lint:js": "eslint .",
     "start": "ember serve",
-    "test": "ember test"
+    "test": "ember test",
+    "server:node": "ember build --prod --output-path='tmp/deploy-dist' && EXPERIMENTAL_RENDER_MODE_SERIALIZE=true node fastboot-server.js"
   },
   "devDependencies": {
     "@ember/jquery": "^0.6.0",