Update shoutouts

Author: d0nutptr

README.md

@@ -141,3 +141,4 @@ Shoutout to the following hackers for help in one way or another.
 * [Sean](https://twitter.com/seanyeoh)
 * [Ruby](https://twitter.com/_ruby)
 * [vila](https://twitter.com/cgvwzq)
+* [nbk_2000](https://twitter.com/nbk_2000)