Merge branch 'sselhorn-master-patch-28309' into 'master'

Lowercase for pipeline editor

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/131082



Merged-by: Phillip Wells <pwells@gitlab.com>
Approved-by: Phillip Wells <pwells@gitlab.com>
Co-authored-by: Suzanne Selhorn <sselhorn@gitlab.com>

doc/ci/pipeline_editor/index.md

@@ -5,7 +5,7 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 type: reference
 ---
-# Pipeline Editor **(FREE ALL)**
+# Pipeline editor **(FREE ALL)**
 > - [Introduced](https://gitlab.com/groups/gitlab-org/-/epics/4540) in GitLab 13.8.
 > - [Feature flag removed](https://gitlab.com/gitlab-org/gitlab/-/issues/270059) in GitLab 13.10.