Update CONTRIBUTORS.md

Author: krmbn0576

CONTRIBUTORS.md

@@ -2,10 +2,14 @@
 - [@iyokan_nico](https://twitter.com/iyokan_nico)
 - [@krmbn0576](https://twitter.com/krmbn0576)
 - [@liply](https://twitter.com/liplynet) [master@liply.net](mailto:master@liply.net)
+- [@Sigureya](https://twitter.com/Sigureya)
 
 # Contributors
 - ivanpopelyshev
 - wilfrem
 - rutan
 - niokasgami
 - triacontane
+- bungcip
+- white-mns
+- rev2nym