added/fixed headers k-n

https://github.com/borisyankov/DefinitelyTyped/issues/1570

knockout.kogrid/ko-grid.d.ts

@@ -1,6 +1,7 @@
 // Type definitions for ko-grid 
 // Project: http://knockout-contrib.github.io/KoGrid/
-// DefinitelyTyped: https://github.com/borisyankov/DefinitelyTyped
+// Definitions by: huer12 <https://github.com/huer12/>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
 
 // These are very definitely preliminary. Please feel free to improve.
 
@@ -189,4 +190,4 @@ declare module kg {
         /** currentPage: the uhm... current page. */
         currentPage?: number;
     }
-}
+}