README.md in peddler-0.12.5 vs README.md in peddler-0.12.7

- old
+ new

@@ -1,11 +1,11 @@
 
 # Peddler
 
 [![Build Status](https://travis-ci.org/hakanensari/peddler.svg)](https://travis-ci.org/hakanensari/peddler)
-[![Code Climate](http://img.shields.io/codeclimate/github/hakanensari/peddler.svg)](https://codeclimate.com/github/hakanensari/peddler)
-[![Coverage Status](http://img.shields.io/coveralls/hakanensari/peddler/master.svg)](https://coveralls.io/r/hakanensari/peddler)
+[![Code Climate](https://codeclimate.com/github/hakanensari/peddler/badges/gpa.svg)](https://codeclimate.com/github/hakanensari/peddler)
+[![Coverage Status](https://coveralls.io/repos/hakanensari/peddler/badge.svg?branch=master)](https://coveralls.io/r/hakanensari/peddler?branch=master)
 
 **Peddler** is a Ruby interface to the [Amazon MWS API](https://developer.amazonservices.com/), a collection of web services that help Amazon sellers programmatically exchange data on their listings, orders, payments, reports, and more.
 
 To use Amazon MWS, you must have an eligible seller account.
 
@@ -47,12 +47,14 @@
 
 If instantiating a client for another seller, you have to provide the `MWSAuthToken` generated for you by the latter:
 
 ```ruby
 client = MWS.orders(
-  marketplace_id: "...",
-  merchant_id:    "...",
-  auth_token:     "..."
+  marketplace_id:        "...",
+  merchant_id:           "...",
+  aws_access_key_id:     "...",
+  aws_secret_access_key: "...",
+  auth_token:            "..."
 )
 ```
 
 ## Usage
 