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