Merge branch 'docs-codeowners-update-2' into 'master'

Adjust doc codeowners entry

See merge request gitlab-org/gitlab!22201

.gitlab/CODEOWNERS

@@ -3,7 +3,7 @@
 *.rake @gitlab-org/maintainers/rails-backend
 
 # Technical writing team are the default reviewers for everything in `doc/`
-doc/ @gl-docsteam
+/doc/* @gl-docsteam
 
 # Frontend maintainers should see everything in `app/assets/`
 app/assets/ @gitlab-org/maintainers/frontend