README.mdown in wkhtmltopdf-heroku-1.0.0 vs README.mdown in wkhtmltopdf-heroku-2.12.2.1

@@ -2,9 +2,30 @@
 
 Provides a [wkhtmltopdf](http://code.google.com/p/wkhtmltopdf/) binary for [Heroku](http://www.heroku.com/).
 
 Preconfigures [pdfkit](https://rubygems.org/gems/pdfkit), [wicked_pdf](https://rubygems.org/gems/wicked_pdf) and [wisepdf](http://rubygems.org/gems/wisepdf) to use this binary if they are loaded.
 
+## Usage
+
+In your `Gemfile`:
+
+```ruby
+  gem 'wkhtmltopdf-heroku'
+```
+
+## Current wkhtmltopdf Version: 0.12.2.1 Ubuntu Trusty 64-bit.
+
+For more details See wkhtmltopdf [Changelog](https://github.com/wkhtmltopdf/wkhtmltopdf/blob/master/CHANGELOG.md)
+
+## Supported Heroku Stack: [Cedar-14](https://devcenter.heroku.com/articles/cedar)
+
+See [migration guides](https://devcenter.heroku.com/articles/cedar-14-migration) for more details.
+
+## Contributors
+
+* @bradphelan
+* @pallymore
+
 ## Copyright
 
 Copyright (c) 2011 Brad Phelan. See LICENSE.txt for further details.