Merge branch 'rd-rest-api-edit-making-request' into 'master'

REST API - edit intro topic and create troubleshooting topic

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/167261



Merged-by: Suzanne Selhorn <sselhorn@gitlab.com>
Co-authored-by: Russell Dickenson <rdickenson@gitlab.com>