apply actual naming to restore's parameter name

https://github.com/radar/paranoia/blame/1b051ae78793f3b62297b5adbaa9c1d0
0e6726e0/README.md#L154

lib/paranoia.rb

@@ -33,13 +33,15 @@ module Paranoia
     end
     alias :deleted :only_deleted
 
-    def restore(id, opts = {})
-      if ActiveRecord::Base === id
-        id = id.id
+    def restore(id_or_ids, opts = {})
+      ids = Array(id_or_ids).flatten
+      any_object_instead_of_id = ids.any? { |id| ActiveRecord::Base === id }
+      if any_object_instead_of_id
+        ids.map! { |id| ActiveRecord::Base === id ? id.id : id }
         ActiveSupport::Deprecation.warn("You are passing an instance of ActiveRecord::Base to `restore`. " \
                                         "Please pass the id of the object by calling `.id`")
       end
-      Array(id).flatten.map { |one_id| only_deleted.find(one_id).restore!(opts) }
+      ids.map { |id| only_deleted.find(id).restore!(opts) }
     end
   end