README.md in capybara-json-0.3.0.beta2 vs README.md in capybara-json-0.3.0

@@ -1,8 +1,8 @@
 # capybara-json [![Build Status](https://secure.travis-ci.org/okitan/capybara-json.png?branch=master)](http://travis-ci.org/okitan/capybara-json) [![Dependency Status](https://gemnasium.com/okitan/capybara-json.png)](https://gemnasium.com/okitan/capybara-json)
 
-testing ruby: 1.9.2, 1.9.3 and ruby-head;  Capybara: < 1.0 and > 1.0
+testing ruby: 1.9.2, 1.9.3;  Capybara: 0.4.x, 1.1.x, 2.0.x
 
 ## About capybara-json
 
 capybara-json provides the same interface to testing JSON API (both local and remote)
 
@@ -13,21 +13,26 @@
 ```ruby
 require 'capybara/json'
 include Capybara::Json
 
 Capybara.current_driver = :rack_test_json
+Capybara.app = MyRackApp
 post '/', { "this is" => "json" } # POST '/'
 json   #=> parsed json response
 source #=> raw response body
 get  '/errors/400'
 status_code #=> 400
 get! '/errors' #=> raise Capybara::Json::Error
+get  '/errors', {}, { 'header' => '' } # request headers
+response_headers #=> response headers
 
 Capybara.current_driver = :httpclient_json
 Capybara.app_host = 'http://example.com'
 post '/', { "this is" => "json" } # POST 'http://example.com/'
 json   #=> parsed json response
 source #=> raw response body
 get  '/errors/400'
 status_code #=> 400
 get! '/errors' #=> raise Capybara::Json::Error
+get  '/errors', {}, { 'header' => '' } # request headers
+response_headers #=> response headers
 ```