Does anybody know how to do this?

[voiceoverpete]

Can anybody help? I don't know how to make someone's name a link to their profile like this.
https://gyazo.com/b0818753592dddb991c7fbc4cc815ec1

 

[Tristen]

@{username}

 

[voiceoverpete]

Tristen[DOUBLEPOST=1508340850][/DOUBLEPOST]oh shit thanks