How it works:
{{plainlink|pn=Kategorie:Atys|txt=Atys, den Planeten der Pflanzen|txt2=text here if needed}}
As pn (pagename) you can input every name after https://en.wiki.ryzom.com/wiki/ so "category:name", "template:name" or "pagename". In txt (text) you can add a text which is shown instead of the URL.
How it looks: Atys, den Planeten der Pflanzen {{{txt2}}}