Merge branch 'docs-fix-nesting-3' into 'master'

Fix list indentation in dev docs

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/156462



Merged-by: Fiona Neill <fneill@gitlab.com>
Approved-by: Fiona Neill <fneill@gitlab.com>
Co-authored-by: Marcel Amirault <mamirault@gitlab.com>