docs: add myself to contributors.xml

Author: Frank Fiegel

contributors.yml

@@ -277,6 +277,7 @@
 - promet99
 - proshunsuke
 - pruszel
+- punkpeye
 - pwdcd
 - pyitphyoaung
 - refusado
@@ -386,4 +387,4 @@
 - ytori
 - yuleicul
 - zeromask1337
-- zheng-chuang
+- zheng-chuang