Grunt Brand guide

@cowboy Here's the layout for the Brand Guide. You can start editing the content.

@vladikoff I have [another branch](https://github.com/isaacdurazo/gruntjs.com/tree/44-brand-guide)  under gruntjs.com for the assets and the styles needed for this page. I probably should wait to submit a PR, right?
Also, the idea is to keep the same style we have in the rest of the site. I'm definitely not the right person since English is not my first language

Sent from my aiFon

> On jun 19, 2014, at 11:09 AM, Sindre Sorhus <notifications@github.com> wrote:
> 
> In Grunt-Brand-Guide.md:
> 
> > +As you can see, the "Built with Grunt" badge is modern, stylish, and has been designed to fit nicely next to all your project's other mini-badges. You can put it first, last, or anywhere in the middle. Have fun!
> > +
> > +[![NPM version](https://badge.fury.io/js/grunt.png)](http://badge.fury.io/)
> > +[![Coverage Status](https://s3.amazonaws.com/assets.coveralls.io/badges/coveralls_100.png)](https://coveralls.io/)
> > +[![Build Status](https://secure.travis-ci.org/gruntjs/grunt.png?branch=master)](http://travis-ci.org/)
> > +[![Built with Grunt](https://cdn.gruntjs.com/builtwith.png)](http://gruntjs.com/)
> > +
> > +## Legal
> > +
> > +All the Grunt graphics are propietary and protected under intellectual property laws, so please use them correctly.
> > +
> > +Don’t display these graphics in a way that implies a relationship, affiliation, or endorsment by Grunt of your product, service, or business.
> > +
> > +Don’t use these graphics as part of your own product, business, or service’s name.
> > +
> > +Don’t alter these graphics in any way, or combine them with any other graphics, without written consent from MailChimp.
> MailChimp?
> 
> —
> Reply to this email directly or view it on GitHub.