Clickable link in description

You can add a link in description. You must add it between the tag [lfh-gpx]:

[lfh-gpx src="my-gpx" color=red]
    <a href="url-link">a link to xx</a>
[/lfh-gpx]

You can also add list or image:
See https://elisabeth.pointal.org/lf-hiker/en/get-started/ $4

I have tried this but without success.

I have also noticed that when I follow the link you give in your reply and then click on the track in the map, the description does not show the image but is empty – exactly the same result I have when I try to add a link.

Can you look into this please?