Update README.md

fixed typo

Author: Fivell

README.md

@@ -71,7 +71,7 @@ Tool                    | Description
 :after_batch_import		|proc for after each batch action, called with  importer object
 :on_duplicate_key_update|an Array or Hash, tells activerecord-import to use MySQL's ON DUPLICATE KEY UPDATE or Postgres 9.5+ ON CONFLICT DO UPDATE ability.
 :timestamps				|bool, tells activerecord-import to not add timestamps (if false) even if record timestamps is disabled in ActiveRecord::Base
-:ignore					|bool, tells activerecord-import toto use MySQL's INSERT IGNORE ability
+:ignore					|bool, tells activerecord-import to use MySQL's INSERT IGNORE ability
 :template				|custom template rendering
 :template_object		|object passing to view
 :resource_class			|resource class name