Add twitter account for each authors

[jofftiquez]

Suggested format below. You can add a new line like so:

## Vue Stripe

Stripe Checkout & Elements for Vue.js

 - [Website](https://vuestripe.com)
 - [GitHub](https://github.com/vue-stripe/vue-stripe)
 - Author: [@jofftiquez](https://github.com/jofftiquez)
+ - Twitter: [@jrtiquez](https://twitter.com/jrtiquez) 

The task also includes stalking the author so do your best! :D

[omsurase]

i would like to do this

[jofftiquez]

Thanks @omsurase!

[jofftiquez]

The issue is still open for other author's twitter account

[paulaxisabel]

I would like to do this!