README.md in lookout-rack-utils-1.5.0 vs README.md in lookout-rack-utils-1.6.0

@@ -27,9 +27,13 @@
     s.prefix = 'app'
     s.host = 'localhost'
     s.port = 8125
   end
   ```
+
+  You will also need to prime the instance before using it by calling
+`Lookout::Rack::Utils::Graphite.instance`.
+
 ### Lookout::Rack::Utils::I18n
   You'll need configatron set up:
 
  ```ruby
     configatron.default_locale = :en