Links broken in annotation demo "Friedrich Leibnütz (Wikipedia sample)" #229
Description
The links for annotated entities in "Friedrich Leibnütz (Wikipedia sample)" demo are broken. The screenshot shows that the link for Kleinzschocher goes to https://tei-publisher.com/exist/apps/tei-publisher/undefined. The external link to Universität Leipzig (https://https//d-nb.info/gnd/2024343-1) is broken as well.
