Merge branch 'fix/doc-ci-directed-acyclic-graph' into 'master'

Added tier badge to ci/directed_acyclic_graph

See merge request gitlab-org/gitlab!69773

doc/ci/directed_acyclic_graph/index.md

@@ -5,7 +5,7 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 type: reference
 ---
 
-# Directed Acyclic Graph
+# Directed Acyclic Graph **(FREE)**
 
 > - [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/issues/47063) in GitLab 12.2.
 > - [Feature flag removed](https://gitlab.com/gitlab-org/gitlab/-/issues/206902) in GitLab 12.10.