Consider adding Javascript documentation

[Nepoxx]

Typescript is great, but not everyone is using it.

I struggled to find out how to use this module as var table = require('table') does not work (see #14 )

[gajus]

Typescript is great, but not everyone is using it.

This package is using https://flowtype.org/. Regardless, it does not impact a consumer.

I struggled to find out how to use this module as var table = require('table') does not work (see #14 )

It should be as simple as var table = require('table'). Lets continue conversation in the #14.