Merge branch 'fix/doc-ci-interactive-web-terminal' into 'master'

Added tier badge to ci/interactive_web_terminal/index.md

See merge request gitlab-org/gitlab!69777

doc/ci/interactive_web_terminal/index.md

@@ -5,7 +5,7 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 type: reference
 ---
 
-# Interactive Web Terminals
+# Interactive Web Terminals **(FREE)**
 
 > [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/issues/50144) in GitLab 11.3.