README.md in active_merchant-epsilon-0.5.1 vs README.md in active_merchant-epsilon-0.5.2

@@ -1,9 +1,11 @@
 # ActiveMerchant::Epsilon
+[![Gem](https://img.shields.io/gem/v/active_merchant-epsilon.svg?style=flat-square)](https://rubygems.org/gems/active_merchant-epsilon)
+[![Build Status](https://travis-ci.org/pepabo/active_merchant-epsilon.svg?branch=master)](https://travis-ci.org/pepabo/active_merchant-epsilon)
 [![wercker status](https://app.wercker.com/status/43c6648e20f325c8c0a560c36e89781c/s/master "wercker status")](https://app.wercker.com/project/bykey/43c6648e20f325c8c0a560c36e89781c)
 
-Epsilon integration for ActiveMerchant.
+[Epsilon](http://www.epsilon.jp/) integration for ActiveMerchant.
 
 ## Installation
 
 Add this line to your application's Gemfile:
 
@@ -178,10 +180,10 @@
 gateway = ActiveMerchant::Billing::EpsilonConvenienceStoreGateway.new
 
 convenience_store = ActiveMerchant::Billing::ConvenienceStore.new(
   code:           ActiveMerchant::Billing::ConvenienceStore::Code::LAWSON,
   full_name_kana: 'ヤマダ タロウ',
-  phone_nubmer:   '0312345678'
+  phone_number:   '0312345678'
 )
 
 purchase_detail = {
   user_id:      'YOUR_APP_USER_IDENTIFIER',
   user_name:    '山田 太郎',