README.md in ruby-ecomm-client-1.1.0 vs README.md in ruby-ecomm-client-1.7.0

@@ -17,9 +17,19 @@
     $ gem install ruby-ecomm-client
 
 ## Usage
 
 ```ruby
+RubyEcommClient.configure do |config|
+  config.requesting_app    = '{YOUR_APP_NAME}'
+  #NOTE: An SSL Client Certificate must be registered and specified when using the purchase service
+  #NOTE: Best to read them once as root, then downgrade
+  cert_content                = File.read('{YOUR_CERT_FILE_PATH}')
+  cert_key_content            = File.read('{YOUR_CERT_KEY_FILE_PATH}')
+  config.ssl_cert_content     = cert_content
+  config.ssl_cert_key_content = cert_key_content
+end
+
 shopper_id = '???'
 resource_type = 'outright'
 resource_id = '???' #aka account_uid
 client = RubyEcommClient::Client.new(shopper_id, resource_type, resource_id)