README.rdoc in ruote-dm-2.1.11 vs README.rdoc in ruote-dm-2.2.0

@@ -17,15 +17,16 @@
   #DataMapper.setup(:default, 'sqlite3:ruote_test.db')
   DataMapper.setup(:default, 'postgres://localhost/ruote_test')
   
   engine = Ruote::Engine.new(
     Ruote::Worker.new(
-      Ruote::Dm::DmStorage.new(:default)))
+      Ruote::Dm::Storage.new(:default)))
 
   # ...
 
 To create the tables in the database :
 
+  require 'dm-migrations'
   Ruote::Dm::Document.auto_migrate!
 
 
 Tested with dm 1.0.2, with the postgresql and the msyql adapters.