README.md in ragoon-0.8.0 vs README.md in ragoon-0.8.1

@@ -37,10 +37,10 @@
 
 ### Notification
 
 ```
 service = Ragoon::Services::Notification.new
-notifications = service.retreive
+notifications = service.retrieve
 
 => [
 {:module_id=>"grn.schedule",
 :item=>"1336866",
 :status=>"update",