Vue.js procedures for Keycloak installation on Windows 10

Getting advice
1

Hi
Is the Vue.js procedures complement of the other sections of getting started site? I downloaded and successfully started Keyclock java project. I also followed the vue.js procedures right up the line: ```
launch app:http://127.0.0.1:3000

I have not seen this before. It looks like there should be a command called launch, but I do not.  Here is what I have in my app.vue 
PS C:\Users\azizam\app-vue> tree /F
Folder PATH listing for volume Windows
Volume serial number is 32F8-802D
C:.
│   .babelrc
│   .editorconfig
│   .gitignore
│   index.html
│   package.json
│   README.md
│   webpack.config.js
│
└───src
    │   App.vue
    │   main.js
    │
    └───assets
            logo.png

PS C:\Users\azizam\app-vue> cd .\src\
PS C:\Users\azizam\app-vue\src> ls


    Directory: C:\Users\azizam\app-vue\src


Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d-----        10/15/2020   1:49 PM                assets
-a----        10/15/2020   1:49 PM           1345 App.vue
-a----        10/15/2020   1:56 PM           1042 main.js


PS C:\Users\azizam\app-vue\src> more .\App.vue
<template>
  <div id="app">
    <img src="./assets/logo.png">
    <h1>{{ msg }}</h1>
    <h2>Essential Links</h2>
    <ul>
      <li><a href="https://vuejs.org" target="_blank">Core Docs</a></li>
      <li><a href="https://forum.vuejs.org" target="_blank">Forum</a></li>
      <li><a href="https://chat.vuejs.org" target="_blank">Community Chat</a></li>
      <li><a href="https://twitter.com/vuejs" target="_blank">Twitter</a></li>
    </ul>
    <h2>Ecosystem</h2>
    <ul>
      <li><a href="http://router.vuejs.org/" target="_blank">vue-router</a></li>
      <li><a href="http://vuex.vuejs.org/" target="_blank">vuex</a></li>
      <li><a href="http://vue-loader.vuejs.org/" target="_blank">vue-loader</a></li>
      <li><a href="https://github.com/vuejs/awesome-vue" target="_blank">awesome-vue</a></li>
    </ul>
  </div>
</template>

<script>
export default {
  name: 'app',
  data () {
    return {
      msg: 'Welcome to Your Vue.js App'
    }
  }
}
</script>

<style>
#app {
  font-family: 'Avenir', Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}

h1, h2 {
  font-weight: normal;
}

ul {
  list-style-type: none;
  padding: 0;
}

li {
  display: inline-block;
  margin: 0 10px;
}

a {
  color: #42b983;
}
</style>