In the rich text editor:
@audkdkg
In a comment:
[audkdkg](https://chowlings.com/user/audkdkg)
For Names and Avatars:
In the rich text editor:
%audkdkg
In a comment:
[](https://chowlings.com/user/audkdkg) [audkdkg](https://chowlings.com/user/audkdkg)