Merge branch 'jfarmiloe-docs-bom-warning' into 'master'

Add BOM warning

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/144284



Merged-by: Marcel Amirault <mamirault@gitlab.com>
Approved-by: Marcel Amirault <mamirault@gitlab.com>
Co-authored-by: Justin Farmiloe <jfarmiloe@gitlab.com>