Template string for less code

[wellitongervickas]

Hi, you can use with template string (es6)

console.log(`
....
.... ${chalk.bold('Usage:')} ....
...
...
...
`); 

i think my suggest is more beatiful haha https://github.com/inadarei/nodebootstrap/blob/15c314ce71f5087fe4f14bad4b06cc3795e4c610/nodebootstrap#L127