Update readme

README.md

@@ -3,11 +3,13 @@
 ![wAR miR jEtzT Zu anSTRENgEnd dA JedeN ZWEiten BUChSTaBeN GRoSS zU scHREiBen](mock.png)
 
 ```
-$> ghci Mock.hs
-ghci> putMockRandom "Ich mag Kääääsebrot"
-IcH mAg KÄääÄSEBroT
-ghci> putMockAlternate "Ich mag Kääääsebrot"
-ICh mAg KÄäÄäSeBrOt
+$> stack build
+$> stack exec -- mock-exe random This is a great program.
+ThIs Is A greaT PROgrAM.
+$> stack exec -- mock-exe space This is a great program.
+T h i s   i s   a   g r e a t   p r o g r a m.
 ```
 
+You can get a list of possible mock styles with `stack exec -- mock-exe`.
+
 [![WTFPL-Badge](wtfpl.png)](http://www.wtfpl.net)