Setup Simple Index.Js Webapp

1. npm init -y
2. touch index.js
3. Edit package.json

   ...
   scripts {
   ...
      'serve' : "node index.js"
   }

4. `npm i express`
5. `npm i nodemon`
6. edit `package.json`
```json
   scripts {
   ...
	  'dev' : "nodemon index.js"
   }

7. Add boilerplate code in index.js:

const express = require('express')
const app = express()
 
app.listen(3000, () => {
    console.log("server is running");
});