README.md in ebanx-1.3.1 vs README.md in ebanx-1.3.2

@@ -1,6 +1,7 @@
 # EBANX Ruby gem [![Build Status](https://travis-ci.org/ebanx-integration/ebanx-ruby.svg?branch=master)](https://travis-ci.org/ebanx-integration/ebanx-ruby) [![Code Climate](https://codeclimate.com/github/ebanx-integration/ebanx-ruby/badges/gpa.svg)](https://codeclimate.com/github/ebanx-integration/ebanx-ruby) [![Test Coverage](https://codeclimate.com/github/ebanx-integration/ebanx-ruby/badges/coverage.svg)](https://codeclimate.com/github/ebanx-integration/ebanx-ruby/coverage)
+
 Gem to communicate with EBANX.
 
 Documentation: https://developers.ebanx.com/
 
 ## Installation
@@ -16,13 +17,21 @@
 
     $ gem install ebanx
 
 ## Usage
 
+#### Auth
+```ruby
+Ebanx.tap do |e|
+  e.integration_key = '<<< Your integration key >>>'
+  e.test_mode       = true
+end
+```
+
 #### Create a new Boleto using Direct API
 ```ruby
-response = ebanx.do_direct {
+response = Ebanx.do_direct(
   operation: 'request',
   mode: 'full',
   payment: {
     name: 'João da Silva',
     email: '[e-mail]',
@@ -40,11 +49,11 @@
     state: 'DF',
     country: 'br',
     phone_number: '6130001111',
     due_date: (Time.now + 86400).strftime('%d/%m/%Y')
   }
-}
+)
 
 ```
 
 ## Automated Tests
 We use minitest for testing this Gem.
@@ -57,6 +66,6 @@
 
 1. Fork it
 2. Create your feature branch (`git checkout -b my-new-feature`)
 3. Commit your changes (`git commit -am 'Add some feature'`)
 4. Push to the branch (`git push origin my-new-feature`)
-5. Create new Pull Request
\ No newline at end of file
+5. Create new Pull Request