Fixes kamranahmedse#51

Author: kamranahmedse

README.md

@@ -1321,8 +1321,8 @@ $turnOn = new TurnOn($bulb);
 $turnOff = new TurnOff($bulb);
 
 $remote = new RemoteControl();
-$remoteControl->submit($turnOn); // Bulb has been lit!
-$remoteControl->submit($turnOff); // Darkness!
+$remote->submit($turnOn); // Bulb has been lit!
+$remote->submit($turnOff); // Darkness!
 ```
 
 Command pattern can also be used to implement a transaction based system. Where you keep maintaining the history of commands as soon as you execute them. If the final command is successfully executed, all good otherwise just iterate through the history and keep executing the `undo` on all the executed commands.