README.md in csv_row_model-0.3.10 vs README.md in csv_row_model-0.4.0

@@ -6,11 +6,13 @@
 
 ```ruby
 class ProjectRowModel
   include CsvRowModel::Model
 
-  column :id
+  column :id, options
   column :name
+  
+  merge_options :id, more_options # optional
 end
 ```
 
 To export, define your export model like [`ActiveModel::Serializer`](https://github.com/rails-api/active_model_serializers)
 and generate the file: