https://www.digikam.org/documentation/ has "Database schema" link. Clicking it lands user at root of a git directory ( https://cgit.kde.org/digikam.git ) I links to https://projects.kde.org/projects/extragear/graphics/digikam/repository/revisions/master/raw/project/documents/DBSCHEMA.ODS but user is redirected to https://cgit.kde.org/digikam.git
Git commit 75f826a820888a8b1926f6f59d39511bd5e41374 by Simon Frei. Committed on 21/10/2017 at 14:52. Pushed by sfrei into branch 'master'. Fix link to download db scheme M +1 -1 content/documentation/_index.md https://commits.kde.org/websites/digikam-org/75f826a820888a8b1926f6f59d39511bd5e41374