 
   There are many use cases for event handlers. For example, a logging
   system can be built using event handlers where each log message is
-  an event and different event handlers can be plugged to handle the
+  an event and different event handlers can be attached to handle the
   log messages. One handler may print error messages on the terminal,
   another can write it to a file, while a third one can keep the
   messages in memory (like a buffer) until they are read.


  ## Modes

  GenEvent stream supports three different notifications.

  On `GenEvent.ack_notify/2`, the manager acknowledges each event,
  providing backpressure, but processing of the message happens


  ## Learn more and compatibility

  If you wish to find out more about GenEvent, the documentation and links
  in Erlang can provide extra insight.

    * [`:gen_event` module documentation](http://www.erlang.org/doc/man/gen_event.html)
    * [Event Handlers – Learn You Some Erlang for Great Good!](http://learnyousomeerlang.com/event-handlers)

