Vue 프로젝트 생성

1. init

$ npm init

2. npmjs
   https://www.npmjs.com/

ex) $ npm i prompt-sync

3. CLI (https://cli.vuejs.org/guide/installation.html)

$ npm install -g @vue/cli

4. check

$ vue --version

5. @vue/cli 프로젝트 생성

$ vue create vue-board

$ cd hello-vue-cli
$ npm run serve

6. axios 설치
   https://www.npmjs.com/package/axios

$ npm i axios