Merge branch 'rotscher--tu-dresden.de-preview-patch-79460' into 'preview'

Update doc.zih.tu-dresden.de/mkdocs.yml

See merge request !635

doc.zih.tu-dresden.de/mkdocs.yml

@@ -224,7 +224,8 @@ plugins:
       validate_external_urls: False
       # Validate the entire rendered template, slow!
       validate_rendered_template: True
-  - mkdocs-video
+  - mkdocs-video:
+      is_video: True
 
 # Enable cross-page anchor validation
 # https://www.mkdocs.org/user-guide/configuration/#use_directory_urls