update readme organization

readme.md

@@ -10,19 +10,18 @@ a roots extension for inlining your CSS properties into the style attribute in a
 
 - make sure you are in your roots project directory
 - `npm install roots-inline-css --save`
-- modify your `app.coffee` file to include the extension, as such
+
+### Usage
 
   ```coffee
+  # app.coffee
   rootsInlineCss = require('roots-inline-css')
 
   module.exports =
     options = {files: '/path/**.html', applyStyleTags:true}
     extensions: [rootsInlineCss(options)]
   ```
 
-### Usage
-
-
 ### License & Contributing
 
 - Details on the license [can be found here](LICENSE.md)