NLog v6 - Updated credits

Author: snakefoot

_posts/2025-04-29-nlog-6-0-major-changes.md

@@ -513,4 +513,6 @@ Additional thanks to all contributers, since last major release:
 - [Orace](https://github.com/Orace)
 - [tvogel-nid](https://github.com/tvogel-nid)
 - [martinzding](https://github.com/martinzding)
-- [kurnakovv](https://github.com/kurnakovv)
+- [kurnakovv](https://github.com/kurnakovv)
+- [dance](https://github.com/dance)
+- [JohnVerheij](https://github.com/JohnVerheij)