README.md in dir_model-0.6.2 vs README.md in dir_model-0.7.0

@@ -158,13 +158,15 @@
     zone_name: 'zone_name',
     zone: File.new('spec/fixtures/image.png'),
   })
 ]
 
-exporter = DirModel::Export::AggregateDir.new(BasicExportDirModel)
+exporter = DirModel::Export::AggregateDir.new
 
 exporter.generate do |dir|
-  models.each { |model| dir << model }
+  models.each do |model|
+    dir.append_model(BasicExportDirModel, model)
+  end
 end
 
 exporter.dir_path # => path of generated dir .../Sectors
 ```