As a continuation of improvements in
SOLR-12746, another thing we should do is add keyword metadata to the HTML pages. Currently our pages have this in the <head> section:
We have the structure in place for it in the page templates, we just need to populate with some keywords.
The idea behind doing this is that these terms could be a source for facet buckets when we get a Ref Guide search going via SOLR-10299.