Merge branch 'stackable' into change-build-action

Author: fhennig

README.adoc

@@ -23,6 +23,9 @@ This project is the UI template used on {url-stackable-docs}[the Stackable docs]
 === Tracking
 We have added our own tracking solution into `src/partials/head-scripts.hbs`. It has the URL hardcoded. it can be enabled by setting `site.keys.enable_tracking` to `true`/`false` in the Antora playbook.
 
+=== Highlight.js v10
+[Ticket](https://github.com/stackabletech/documentation/issues/232) - Due to the removal of HTML-passthru in v11 (which we need for [Callouts](https://docs.asciidoctor.org/asciidoc/latest/verbatim/callouts/)) the highlight.js has not been updated from v10. This also affects the Antora Default UI. Both decisions will be revisited when the upstream upgrade is available.
+
 == Code of Conduct
 
 The Antora project and its project spaces are governed by our https://gitlab.com/antora/antora/-/blob/HEAD/CODE-OF-CONDUCT.adoc[Code of Conduct].