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