Render text in custom issue field as url

[Chris Fortmueller]

We have a custom issue field of type "Text field (multi-line)" that is supposed to hold urls. This field is filled by an automation rule:

The result looks like this: 

I have tried Jira Markup by enclosing the urls in square bracktes [myurl] as well as HTTP Markup by using <a href="myurl"/>. Neither works. Is there a way to render these URLs as such, so that they are clickable and open the Ressource behind the url?

[Chris Fortmueller · Accepted solution]

Managed to find this one myself: In the Project Settings, chose "Fields", choose the pencil icon in the top right for editing, select "Renderers" for the desired field, and change its value to "Wiki Style Renderer"