Fix typo in readme file

Author: tembem

README.md

@@ -143,7 +143,7 @@ This method can be used to conveniently remove a job from a queue.
 Resque::dequeue('default', ['My_Job']);
 
 // Removes job class 'My_Job' with Job ID '087df5819a790ac666c9608e2234b21e' of queue 'default'
-Resuque::dequeue('default', ['My_Job' => '087df5819a790ac666c9608e2234b21e']);
+Resque::dequeue('default', ['My_Job' => '087df5819a790ac666c9608e2234b21e']);
 
 // Removes job class 'My_Job' with arguments of queue 'default'
 Resque::dequeue('default', ['My_Job' => array('foo' => 1, 'bar' => 2)]);