Update logrotate cookbook

cookbooks/logrotate/CONTRIBUTING.md

@@ -11,6 +11,36 @@
 - Please ensure all tests and lint checking pass before submitting
   pull requests.
 
-## Testing
+## Development
 
-Please read TESTING.md for details on testing this cookbook.
+### Requirements
+
+- Ruby 2.0+
+- Bundler (`gem install bundler`)
+- [Vagrant](https://vagrantup.com)
+- [VirtualBox](https://virtualbox.org)
+
+### Development Flow
+
+1. Clone the git repository from GitHub:
+
+        $ git clone git@github.com:stevendanna/logrotate.git
+
+2. Install the dependencies using bundler:
+
+        $ bundle install
+
+3. Create a branch for your changes:
+
+        $ git checkout -b my_bug_fix
+
+4. Make any changes
+
+5. Write tests to support those changes. It is highly recommended you
+   write both unit and integration tests.
+
+6. Run the tests:
+    - `make travis`
+    - `kitchen test`
+
+7. Assuming the tests pass, open a Pull Request on GitHub