Update readme.md

Author: Infinitode

readme.md

@@ -14,7 +14,7 @@ DeepDefend has not yet been fully tested. Please report any issues you may encou
 ## Changes in 0.1.1:
 We've updated DeepDefend, here's what's new:
 - 3 new functions under `deepdefend.attacks`
-- 3 new function under `deepdefend.defenses`
+- 3 new functions under `deepdefend.defenses`
 
 ## Installation