README.md in exception-track-0.4.0 vs README.md in exception-track-0.5.0

@@ -79,10 +79,10 @@
 ```
 
 **With Devise**
 
 ```rb
-# config/router.rb
+# config/routes.rb
 authenticate :user, ->(u) { u.admin? } do
   mount ExceptionTrack::Engine => "/exception-track"
 end
 ```