Update for review per maurogeorge feedback

lib/active_model_serializers/logging.rb

@@ -9,7 +9,7 @@ module Logging
 
     included do
       include ActiveModelSerializers::Callbacks
-      extend NotificationMacro
+      extend Macros
       instrument_rendering
     end
 
@@ -25,8 +25,12 @@ def instrument_rendering
       end
     end
 
+    # Macros that can be used to customize the logging of class or instance methods,
+    # by extending the class or its singleton.
+    #
     # Adapted from:
     #   https://github.com/rubygems/rubygems/blob/cb28f5e991/lib/rubygems/deprecate.rb
+    #
     # Provides a single method +notify+ to be used to declare when
     # something a method notifies, with the argument +callback_name+ of the notification callback.
     #
@@ -39,15 +43,15 @@ def instrument_rendering
     #         # ...
     #       end
     #
-    #       include ActiveModelSerializers::Logging
+    #       include ActiveModelSerializers::Logging::Macros
     #       notify :instance_method, :render
     #
     #       class << self
-    #         extend ActiveModelSerializers::Logging::NotificationMacro
+    #         extend ActiveModelSerializers::Logging::Macros
     #         notify :klass_method, :render
     #       end
     #     end
-    module NotificationMacro
+    module Macros
       ##
       # Simple notify method that wraps up +name+
       # in a dummy method. It notifies on with the +callback_name+ notifier on