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