Merge branch 'docs-team-codeowners' into 'master'

Add the doc dir to codeowners

See merge request gitlab-org/gitlab!27168

.gitlab/CODEOWNERS

@@ -8,6 +8,7 @@
 
 # Technical writing team are the default reviewers for all markdown docs
 *.md @gl-docsteam
+/doc/ @gl-docsteam
 
 # Frontend maintainers should see everything in `app/assets/`
 *.scss @annabeldunstone @gitlab-org/maintainers/frontend