add getting started chapter for grunt
add linter chapter for grunt
fixed typos and copyediting
improving copy of the getting started guide
Merge pull request #30 from belen-albeza/master

Grunt: getting started + linting
Added initial content for Brunch chapters
Small wording changes
Merge pull request #32 from alxhill/master

Added initial content for Brunch chapters
Close GH-24: Initial gulp Documentation.
merge with master and update content