Updating testing & distribution documentation.

We've moved to a `Makefile` and some of the documentation fell out of
date. This corrects the outdated docs.

CONTRIBUTING.md

@@ -0,0 +1,16 @@
+# Contributing to Ember Resource
+
+We're glad you're interested in contributing to the Ember Resource project! There are a number of ways in which you can contribute!
+
+* Submit issues to our [issue tracker][1]
+* Use Ember Resource in your own project and let us know how it works for you
+* Open a pull request and contribute some of your own code
+
+### Pull Requests
+
+We love pull requests. Please make sure to run the tests locally (`open spec/runner.html` for browser tests or `make test` on the command line) before pushing your branch . But don't worry, even if you forget [Travis CI][2] should run the tests on the pull request for you.
+
+Submit your pull request!
+
+[1]: https://github.com/zendesk/ember-resource/issues
+[2]: https://travis-ci.org/zendesk/ember-resource/

Makefile

@@ -14,7 +14,7 @@ jshint: npm_install
 	$(JSHINT) src/*.js src/vendor/*.js spec/javascripts/*Spec.js
 
 test: jshint npm_install
-	./node_modules/mocha-phantomjs/bin/mocha-phantomjs spec/suite.html
+	./node_modules/mocha-phantomjs/bin/mocha-phantomjs spec/runner.html
 
 npm_install:
 	npm install

README.md

@@ -178,21 +178,28 @@ describing the action that occurred (one of
 
 ## Testing
 
-Currently the command line test runners are in a state of disrepair :( To run
-the Ember Resource test suite, just open `spec/runner.html` in your favorite
-browser.
+Tests can be run from the command line, or in a browser:
+
+### Browser
+
+To run the Ember Resource test suite in a browser, just open `spec/runner.html`
+in your favorite browser.
 
 On Mac OS:
 
     open spec/runner.html
 
+### Command line
+
+To run the test suite from the command line run the `make test` command:
+
+    make test
+
 ## Building a distribution
 
-There is a rake task to generate an asset for distribution.
+To build your very own copy of Ember Resource run the `make dist` task:
 
-```
-  rake dist:build
-```
+    make dist
 
 The output will be put in the `dist/` folder.