Improve grammar

jeffwidman · jeffwidman · commit d973db5f8d6e · 2016-02-07T20:13:01.000-08:00
diff --git a/docs/pages/docs/mutations.md b/docs/pages/docs/mutations.md
@@ -5,7 +5,7 @@ description: Walkthrough Mutations
 
 # Mutations
 
-A Mutation is a special ObjectType that define also an Input.
+A Mutation is a special ObjectType that also defines an Input.
 
 ## Quick example
 
