README.markdown in datatrans-4.0.1 vs README.markdown in datatrans-5.0.0

@@ -9,9 +9,10 @@
 Build your Datatrans Configuration like so:
 
     datatrans = Datatrans::Config.new(
       :merchant_id => '1234567',
       :sign_key => 'ab739fd5b7c2a1...',
+      :password => 'server to server request password',
       :environment => :production,
       :proxy => {
         :http_proxyaddr => "proxy.com",
         :http_proxyport => 80,
         :http_proxyuser => "hans",