cleaned-up headers

mathjax/mathjax.d.ts

@@ -1,7 +1,7 @@
 // Type definitions for MathJax
 // Project: https://github.com/mathjax/MathJax
 // Definitions by: Roland Zwaga <https://github.com/rolandzwaga>
-// DefinitelyTyped: https://github.com/borisyankov/DefinitelyTyped
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
 
 // These are slightly preliminary and can use some more strong typing here and there. Please feel free to improve.
 declare var MathJax:jax.IMathJax;
@@ -1697,4 +1697,4 @@ declare module jax {
         /*Indicates whether the mathematics has changed so that its output needs to be updated.*/
         needsUpdate():boolean;
     }
-}
+}