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