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