Merge pull request #135 from jonnyreeves/patch-1

Add NPM installation instructions

README.markdown

@@ -17,6 +17,10 @@ jasmine-ajax is currently compatible with any library that uses XMLHttpRequest.
 
 Installing
 ----------
+#### NPM ####
+Install `jasmine-ajax` from NPM via  `npm install --save-dev jasmine-ajax`; you can then `require('jasmine-ajax)` inside your test-suite and access it via the `jasmine` global.
+
+#### Browser ####
 Download [mock-ajax.js](https://raw.github.com/jasmine/jasmine-ajax/master/lib/mock-ajax.js) and add it to your project. If you are using the jasmine gem, be sure the location you put mock-ajax.js is included in your src_files path in jasmine.yml. If you are using Jasmine standalone, make sure you add it to your spec runner.
 
 Setup