Problem solved! Cairomm's GitLab Pages are published at https://cairo.pages.freedesktop.org/cairomm/.In Gnome it's recommended to use CI (continuous integration) to public reference documentation from the latest commit on the master branch. It's done with the pages: keyword and paths: public/ in the .gitlab-ci.yml file. Is this possible on gitlab.freedesktop.org/cairo?
For instance, if files are copied to the public/ directory in gitlab.gnome.org/GNOME/glibmm, they show up at gnome.pages.gitlab.gnome.org/glibmm. I've made a test with gitlab.freedesktop.org/cairo/cairomm. The CI pipeline passes. I've tried to find my stored pages at cairo.pages.gitlab.freedesktop.org/cairomm and a number of similar locations. I can't find them. Where are they? Are they published at all? I can find them by going to the CI results from the latest commit (in this case to the kjellahl/testci branch) and clicking Job artifacts - Browse, but I'd expect them to show up also at a more easily available location.
Kjell Ahlstedt