hello_vue.js in railman-1.0.5

- old
+ new

@@ -1,19 +1,15 @@
 /* eslint no-console: 0 */
-// Run this example by adding <%= javascript_pack_tag 'hello_vue' %>
-// to the head of your layout file,
+// Run this example by adding <%= javascript_pack_tag 'hello_vue' %> and
+// <%= stylesheet_pack_tag 'hello_vue' %> to the head of your layout file,
 // like app/views/layouts/application.html.erb.
 // All it does is render <div>Hello Vue</div> at the bottom of the page.
 
-import Vue from 'vue/dist/vue.esm'
+import Vue from 'vue'
 import App from './app.vue'
 
 document.addEventListener('DOMContentLoaded', () => {
   document.body.appendChild(document.createElement('hello'))
-  const app = new Vue({
-    el: 'hello',
-    template: '<App/>',
-    components: { App }
-  })
+  const app = new Vue(App).$mount('hello')
 
   console.log(app)
 })