README.md in qualtrics-0.5.1 vs README.md in qualtrics-0.5.2

@@ -14,9 +14,15 @@
 
 Or install it yourself as:
 
     $ gem install qualtrics
 
+Qualtrics.configure do |config|
+  config.user = ENV['QUALTRICS_USER']
+  config.token = ENV['QUALTRICS_TOKEN']
+  config.default_library_id = ENV['QUALTRICS_LIBRARY_ID']
+end
+
 ## Usage
 
 TODO: Write usage instructions here
 
 ## Contributing