README.md in oprah-0.1.2 vs README.md in oprah-0.1.3

@@ -16,10 +16,14 @@
 * [Collections](#collections)
 * [Associations](#associations)
 * [Composition](#composition)
   + [Performance](#performance)
   + [Ordering](#ordering)
+  + [Choosing presenters](#choosing-presenters)
+* [Testing](#testing)
+* [API Documentation](#api-documentation)
+* [Contributing](#contributing)
 * [License](#license)
 * [Author](#author)
 
 ## Overview
 
@@ -30,11 +34,11 @@
 So why another presenter/decorator library? Oprah was written with a few simple
 goals in mind only covered partially (or not at all) by other gems:
 
 - Lightweight
 - Presenters should be easy to test
-- No monkey patching :monkey::gun:
+- Avoid monkey patching, where possible :monkey::gun:
 - Embrace convention over configuration
 - First-class support for composition (modules and concerns)
 
 ## Installation
 
@@ -236,9 +240,54 @@
 end
 
 Oprah.present(User.new).baz
 # => "foobar"
 ```
+
+### Choosing presenters
+
+When presenting an object you can optionally choose which presenter classes
+to use:
+
+``` ruby
+Oprah.present(User.new, only: DescribablePresenter)
+```
+
+This parameter takes either a single presenter or an `Array` of presenters.
+The presenter(s) given need to match the object's class or one of it's
+ancestors. Non-matching presenters given will be ignored.
+
+## Testing
+
+Testing presenters is as simple as testing a regular class. Oprah also
+provides couple of helpers to make it even easier:
+
+``` ruby
+class UserPresenterTest < Minitest::Test
+  include Oprah::TestHelpers
+
+  def setup
+    @presenter = present User.new
+  end
+
+  def test_presented
+    assert_presented @presenter
+  end
+
+  def test_name
+    assert_equal "John Doe", @presenter.name
+  end
+end
+```
+
+## API Documentation
+
+Comprehensive API Documentation is available at
+[rubydoc.info](http://www.rubydoc.info/gems/oprah).
+
+## Contributing
+
+Please check out our [contributing guidelines](CONTRIBUTING.md).
 
 ## License
 
 Released under the MIT license. See the LICENSE file for details.