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