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