README.rdoc in rails_uploads-0.2.5 vs README.rdoc in rails_uploads-0.2.6

@@ -61,23 +61,26 @@
     validates :attr, :attachment_presence => true, :attachment_size => { :in => 0..4.megabytes }, :attachment_content_type => { :in => ['txt'] }
   end
 
 If you want to translate the errores the keys are:
   errors.messages.attachment_presence
-  errors.messages.attachment_size_in # :less_than and :greater_than
-  errors.messages.attachment_size_less_than  # :less_than
-  errors.messages.attachment_size_greater_than # :greater_than
+  errors.messages.attachment_size_in # :max and :min
+  errors.messages.attachment_size_less_than  # :count
+  errors.messages.attachment_size_greater_than # :count
   errors.messages.attachment_content_type # :types
 
 In your views:
   a{ :href => record.file.url } # To get the file url
   a{ :href => record.image.url } # To get the original image
   a{ :href => record.image.url(:big) } # To get the a thumb
 
 In your forms:
   = f.file_field :attr
 
+If your file it's optional:
+  = f.check_box :delete_attr
+
 = FAQ
 
 == How can I use a cdn with this plugin?
 
 Define a base url in your application.rb:
@@ -89,15 +92,15 @@
   rake uploads:s3:buckets:create
   
 == How can I clean a preset?
 
 Use this rake task:
-  rake uploads:preset:clean MODEL=models PRESETS=first_preset,second_preset
+  rake uploads:presets:clean MODEL=models PRESETS=first_preset,second_preset
 
 == How can I refresh a preset?
 
 Use this rake task:
-  rake uploads:preset:refresh MODEL=models PRESETS=first_preset,second_preset
+  rake uploads:presets:refresh MODEL=models PRESETS=first_preset,second_preset
 
 == How to migrate from versions before 0.1.0?
 
 To migrate from versions before 0.1.0 you need to reorganize uploads with this task after define your presets in your application.rb:
   rake uploads:migrate