README.md in pwwka-0.20.0 vs README.md in pwwka-0.21.0

@@ -36,9 +36,10 @@
   config.topic_exchange_name   = "mycompany-topics-#{Rails.env}"
   config.delayed_exchange_name = "mycompany-topics-#{Rails.env}"
   config.options               = {allow_delayed: true}
   config.requeue_on_error      = true
   config.default_prefetch      = 10
+  config.process_name          = "my-process-name"
 end
 ```
 
 Note that the absence of `RABBITMQ_URL` in your environment will cause the underlying RabbitMQ library to use the defaults.  If you aren't
 using the defaults, set that environment variable to something like this: