fix copy paste error

rivets/rivets.d.ts

@@ -1,4 +1,4 @@
-// Type definitions for body-parser
+// Type definitions for rivets
 // Project: http://rivetsjs.com/
 // Definitions by: Trevor Baron <https://github.com/TrevorDev>
 // Definitions: https://github.com/borisyankov/DefinitelyTyped
@@ -32,4 +32,4 @@ interface FinchStatic {
 declare var Rivets: FinchStatic;
 declare module "rivets" {
     export = Rivets;
-}
+}