In the rich text editor:
@Pvnk96
In a comment:
[Pvnk96](https://chowlings.com/user/Pvnk96)
For Names and Avatars:
In the rich text editor:
%Pvnk96
In a comment:
[![Pvnk96's Avatar](https://chowlings.com/images/avatars/default.jpg)](https://chowlings.com/user/Pvnk96) [Pvnk96](https://chowlings.com/user/Pvnk96)