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