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