readme update

Author: Benjamin Brook

README.md

@@ -4,7 +4,7 @@ A lightweight beats-per-minute tapper for the Mac status bar
 
 ![Example](http://i.imgur.com/9HkrEkI.gif)
 
-If you mix music, you're always wondering if the song playing could fit into a set. This discreet app is always available to provide the answer.
+If you mix music, you are always wondering if the song you're listening to could fit into a set. This discreet app is always available to provide the answer.
 
 ## Installation