feat: update list of contributor

Author: novalagung

content/CONTRIBUTING.md

@@ -49,6 +49,7 @@ Berikut merupakan *hall of fame* kontributor yang sudah berbaik hati menyisihkan
 1. [Ibnul Mutaki](https://github.com/cacing69)
 1. [Imam Ahmad Fahrezi](https://github.com/imamcenter)
 1. [Ivan Aulia Rahman](https://github.com/ivanauliaa)
+1. [Jono](https://github.com/josterand)
 1. [Kiswono Prayogo](https://github.com/kokizzu)
 1. [Lufri Rais Maulana](https://github.com/raismaulana)
 1. [M. Ilham Syaputra](https://github.com/ilhamsyaputra)