Add flag to force color output

[adius]

I run the code on AWS Lambda and save it to a file.
Chalk.js, however, thinks it doesn't support colors and prints no escape codes.
I had to monkey patch the code

var chalk = require('chalk')
var chalk = new chalk.constructor({enabled: true, level: 3})
var Table = require('cli-table')

to make it work

[adius]

This is a better solution:

process.env.FORCE_COLOR = 1
const MarkedTerminal = require('marked-terminal')

Attention: Must be set before requiring marked-terminal

[adius]

Being able to set it as a MarkedTerminal setting would yet still be better ;-)

[mikaelbr]

Hm. I think maybe the best way here is to have a option to marked terminal with the chalk instance. I think this is a good first contribute for someone, as it would be fairly small scoped and doesn't require any big job of formatting text and regexery etc.

[millette]

You might also want to support the emerging NO_COLOR standard.

[mikaelbr]

Thanks @millette. Think that could be it's own issue so it can be followed up better.