Make group-level project template docs clearer

Status Job ID Name Coverage
  Test
passed #233089959
gitlab-org
danger-review

00:09:31

passed #233089957
gitlab-org
docs lint

00:04:25

passed #233089958
gitlab-org
ee_compat_check

00:03:02

passed #233089960
gitlab-org
lint-ci-gitlab

00:00:29

 
  Review
manual #233089961
allowed to fail manual
package-and-qa
 
  Post Test
passed #233089962
gitlab-org
review-docs-deploy

00:00:24

 
  Post Cleanup
manual #233089963
gitlab-org allowed to fail manual
review-docs-cleanup