update contribution doc

Author: ichord

CONTRIBUTING.md

@@ -7,33 +7,31 @@
 ### Modifying the code
 First, ensure that you have the latest [Node.js](http://nodejs.org/) and [npm](http://npmjs.org/) installed.
 
-Test that grunt is installed globally by running `grunt --version` at the command-line.  If grunt isn't installed globally, run `npm install -g grunt` to install the latest version. _You may need to run `sudo npm install -g grunt`._
+Test that gulp is installed globally by running `grunt -v` at the command-line.  If gulp isn't installed globally, run `npm install -g gulp` to install the latest version.
 
 * Fork and clone the repo.
 * Run `npm install` and `bower install` to install all dev dependencies (including grunt).
 * Modify the `*.coffee` file.
-* Run `grunt` to grunt this project.
+* Run `gulp` to build this project.
 
-Assuming that you don't see any red, you're ready to go. Just be sure to run `grunt` after making any changes, to ensure that nothing is broken.
+Assuming that you don't see any red, you're ready to go. Just be sure to run `gulp` after making any changes, to ensure that nothing is broken.
 
 ### Submitting pull requests
 
 1. Create a new branch, please don't work in your `master` branch directly.
-1. Add failing tests for the change you want to make. Run `grunt` to see the tests fail.
+1. Add failing tests for the change you want to make. Run `gulp` to see the tests fail.
 1. Fix stuff.
-1. Run `grunt` to see if the tests pass. Repeat steps 2-4 until done.
+1. Run `gulp` to see if the tests pass. Repeat steps 2-4 until done.
 1. Open `_SpecRunner.html` unit test file(s) in actual browser to ensure tests pass everywhere.
 1. Update the documentation to reflect any changes.
 1. Push to your fork and submit a pull request.
 
 ### notes
 
-Please don't edit files in the `dist` subdirectory and *.js files in `src` as they are generated via grunt.  
+Please don't edit files in the `dist` subdirectory and *.js files in `src` as they are generated via gulp.  
 You'll find source code in the `src` subdirectory!  
 use `bower install` or `component install` to install dependencies first.
 
 
 ### PhantomJS
-While grunt can run the included unit tests via [PhantomJS](http://phantomjs.org/), this shouldn't be considered a substitute for the real thing. Please be sure to test the `_SpecRunner.html` unit test file(s) in _actual_ browsers.
-
-See the [Why does grunt complain that PhantomJS isn't installed?](https://github.com/gruntjs/grunt/blob/master/docs/faq.md#why-does-grunt-complain-that-phantomjs-isnt-installed) guide in the [Grunt FAQ](https://github.com/gruntjs/grunt/blob/master/docs/faq.md) for help with installing or troubleshooting PhantomJS.
+While gulp can run the included unit tests via [PhantomJS](http://phantomjs.org/), this shouldn't be considered a substitute for the real thing. Please be sure to test the `_SpecRunner.html` unit test file(s) in _actual_ browsers.