Merge topic 'cmake-diagnostics-doc' 95f7f84609 Help: Fix CMD_INSTALL_ABSOLUTE_DESTINATION documentation a882ec84ec cmDocumentation: Add diagnostics 97d13c3053 Help: Improve diagnostics documentation 3cccce8ca2 Help: Add developer documentation for new diagnostics ffe4c2a8ff Help: Fix developer documentation Acked-by: Kitware Robot <kwrobot@kitware.com> Acked-by: Robert Maynard <robertjmaynard@gmail.com> Merge-request: !11996