Merge branch 'aqualls-subheadfix-2' into 'master'

Default branches page: fix subheading names

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/181165



Merged-by: Vasilii Iakliushin <viakliushin@gitlab.com>
Approved-by: Brendan Lynch <blynch@gitlab.com>
Approved-by: Vasilii Iakliushin <viakliushin@gitlab.com>
Reviewed-by: Brendan Lynch <blynch@gitlab.com>
Co-authored-by: Brendan Lynch <blynch@gitlab.com>
Co-authored-by: Amy Qualls <aqualls@gitlab.com>