From 07816bf5ffd4b5d210a5933ca81d81421a57411c Mon Sep 17 00:00:00 2001
From: Matt Aimonetti <mattaimonetti@gmail.com>
Date: Wed, 6 Jun 2012 14:34:28 +0200
Subject: [PATCH] added the KVO wrapper to the README

---
 README.md | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/README.md b/README.md
index 72d14476..f0d80a6b 100644
--- a/README.md
+++ b/README.md
@@ -197,6 +197,33 @@ simple interface:
 # ['TF1', 'France 2', 'France 3']
 ```
 
+### Observers
+**Since: > version 0.4**
+
+You can observe for object's changes and trigger blocks:
+
+``` ruby
+class ExampleViewController < UIViewController
+  include BW::KVO
+
+  def viewDidLoad
+    @label = "Initial state"
+
+    observe(@label, "text") do |old_value, new_value|
+      puts "Hello from viewDidLoad!"
+    end
+  end
+
+  def viewDidAppear(animated)
+    observe(@label, "text") do |old_value, new_value|
+      puts "Hello from viewDidAppear!"
+    end
+  end
+
+end
+```
+
+
 ### String
 
 The Ruby `String` class was extended to add `#camelize` and