Doc Consistency: api/f...

doc/api/feature_flag_specs.md

@@ -6,7 +6,7 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 
 # Feature Flag Specs API **(PREMIUM)**
 
-> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/9566) in [GitLab Premium](https://about.gitlab.com/pricing/) 12.5.
+> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/9566) in GitLab 12.5.
 
 This API was removed in [GitLab 14.0](https://gitlab.com/gitlab-org/gitlab/-/issues/213369).
 Please use [the new API](feature_flags.md) instead.

doc/api/features.md

@@ -4,7 +4,7 @@ group: Release
 info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
 ---
 
-# Features flags API
+# Feature flags API **(FREE SELF)**
 
 This API is for managing Flipper-based [feature flags used in development of GitLab](../development/feature_flags/index.md).
 

doc/api/freeze_periods.md

@@ -5,7 +5,7 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 type: concepts, howto
 ---
 
-# Freeze Periods API
+# Freeze Periods API **(FREE)**
 
 > [Introduced](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/29382) in GitLab 13.0.