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