Updated migrations.textile to change :integer on line 807 to :boolean, as it...

Updated migrations.textile to change :integer on line 807 to :boolean, as it was earlier in the example. :flag is a boolean, not an integer. (defaults to false)

guides/source/migrations.textile

@@ -804,7 +804,7 @@ class AddFlagToProduct < ActiveRecord::Migration
   end
 
   def change
-    add_column :products, :flag, :integer
+    add_column :products, :flag, :boolean
     Product.reset_column_information
     Product.all.each do |product|
       product.update_attributes!(:flag => false)