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