Add preliminary badging for Source Code docset

Add a preliminary **(FREE)** badge to the H1 line for each of these pages. While these badges may not be correct, it will give the PMs an opportunity to review the badging and correct it if needed.

Add preliminary badging for Source Code docset
Add a preliminary **(FREE)** badge to the H1 line for each of these pages. While these badges may not be correct, it will give the PMs an opportunity to review the badging and correct it if needed.
d135e315 · Amy Qualls · 9ad003da · d135e315 · d135e315 · d135e315
--- a/doc/administration/file_hooks.md
+++ b/doc/administration/file_hooks.md
@@ -5,7 +5,7 @@ info: "To determine the technical writer assigned to the Stage/Group associated
 type: reference
 ---

-# File hooks
+# File hooks **(FREE)**

 > - Introduced in GitLab 10.6.
 > - Until GitLab 12.8, the feature name was Plugins.

--- a/doc/administration/git_protocol.md
+++ b/doc/administration/git_protocol.md
@@ -6,7 +6,7 @@ type: reference
 description: "Set and configure Git protocol v2"
 ---

-# Configuring Git Protocol v2
+# Configuring Git Protocol v2 **(FREE)**

 > - [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/issues/46555) in GitLab 11.4.
 > - [Temporarily disabled](https://gitlab.com/gitlab-org/gitlab-foss/-/issues/55769) in GitLab 11.5.8, 11.6.6, 11.7.1, and 11.8+.

--- a/doc/administration/integration/plantuml.md
+++ b/doc/administration/integration/plantuml.md
@@ -5,7 +5,7 @@ info: "To determine the technical writer assigned to the Stage/Group associated
 type: reference, howto
 ---

-# PlantUML & GitLab
+# PlantUML & GitLab **(FREE)**

 > [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/8537) in GitLab 8.16.


--- a/doc/administration/invalidate_markdown_cache.md
+++ b/doc/administration/invalidate_markdown_cache.md
@@ -5,7 +5,7 @@ info: "To determine the technical writer assigned to the Stage/Group associated
 type: reference
 ---

-# Invalidate Markdown Cache
+# Invalidate Markdown Cache **(FREE)**

 For performance reasons, GitLab caches the HTML version of Markdown text
 in fields like comments, issue descriptions, and merge request descriptions. These

--- a/doc/api/branches.md
+++ b/doc/api/branches.md
@@ -5,7 +5,7 @@ info: "To determine the technical writer assigned to the Stage/Group associated
 type: reference, api
 ---

-# Branches API
+# Branches API **(FREE)**

 This API operates on [repository branches](../user/project/repository/branches/index.md).


--- a/doc/api/commits.md
+++ b/doc/api/commits.md
@@ -5,7 +5,7 @@ info: "To determine the technical writer assigned to the Stage/Group associated
 type: reference, api
 ---

-# Commits API
+# Commits API **(FREE)**

 ## List repository commits


--- a/doc/api/discussions.md
+++ b/doc/api/discussions.md
@@ -5,7 +5,7 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 type: reference, api
 ---

-# Discussions API
+# Discussions API **(FREE)**

 Discussions are a set of related notes on:


--- a/doc/api/keys.md
+++ b/doc/api/keys.md
@@ -5,7 +5,7 @@ info: "To determine the technical writer assigned to the Stage/Group associated
 type: reference, api
 ---

-# Keys API
+# Keys API **(FREE)**

 ## Get SSH key with user by ID of an SSH key


--- a/doc/api/markdown.md
+++ b/doc/api/markdown.md
@@ -5,7 +5,7 @@ info: "To determine the technical writer assigned to the Stage/Group associated
 type: reference, api
 ---

-# Markdown API
+# Markdown API **(FREE)**

 > [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/18926) in GitLab 11.0.


--- a/doc/api/merge_request_context_commits.md
+++ b/doc/api/merge_request_context_commits.md
@@ -5,7 +5,7 @@ info: "To determine the technical writer assigned to the Stage/Group associated
 type: reference, api
 ---

-# Merge request context commits API
+# Merge request context commits API **(FREE)**

 ## List MR context commits


--- a/doc/api/merge_requests.md
+++ b/doc/api/merge_requests.md
@@ -5,7 +5,7 @@ info: "To determine the technical writer assigned to the Stage/Group associated
 type: reference, api
 ---

-# Merge requests API
+# Merge requests API **(FREE)**

 > - `author_id`, `author_username`, and `assignee_id` were [introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/13060) in GitLab 9.5.
 > - `my_reaction_emoji` was [introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/14016) in GitLab 10.0.

--- a/doc/api/project_badges.md
+++ b/doc/api/project_badges.md
@@ -5,7 +5,7 @@ info: "To determine the technical writer assigned to the Stage/Group associated
 type: reference, api
 ---

-# Project badges API
+# Project badges API **(FREE)**

 > [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/17082) in GitLab 10.6.


--- a/doc/api/project_import_export.md
+++ b/doc/api/project_import_export.md
@@ -5,7 +5,7 @@ info: "To determine the technical writer assigned to the Stage/Group associated
 type: reference, api
 ---

-# Project import/export API
+# Project import/export API **(FREE)**

 > [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/issues/41899) in GitLab 10.6.


--- a/doc/api/project_statistics.md
+++ b/doc/api/project_statistics.md
@@ -5,7 +5,7 @@ info: "To determine the technical writer assigned to the Stage/Group associated
 type: reference, api
 ---

-# Project statistics API
+# Project statistics API **(FREE)**

 Every API call to [project](../user/project/index.md) statistics must be authenticated.


--- a/doc/api/project_templates.md
+++ b/doc/api/project_templates.md
@@ -5,7 +5,7 @@ info: "To determine the technical writer assigned to the Stage/Group associated
 type: reference, api
 ---

-# Project templates API
+# Project templates API **(FREE)**

 This API is a project-specific version of these endpoints:


--- a/doc/api/protected_branches.md
+++ b/doc/api/protected_branches.md
@@ -5,7 +5,7 @@ info: "To determine the technical writer assigned to the Stage/Group associated
 type: reference, api
 ---

-# Protected branches API
+# Protected branches API **(FREE)**

 > Introduced in GitLab 9.5.


--- a/doc/api/protected_tags.md
+++ b/doc/api/protected_tags.md
@@ -5,7 +5,7 @@ info: "To determine the technical writer assigned to the Stage/Group associated
 type: reference, api
 ---

-# Protected tags API
+# Protected tags API **(FREE)**

 > Introduced in GitLab 11.3.


--- a/doc/api/remote_mirrors.md
+++ b/doc/api/remote_mirrors.md
@@ -5,7 +5,7 @@ info: "To determine the technical writer assigned to the Stage/Group associated
 type: reference, api
 ---

-# Project remote mirrors API
+# Project remote mirrors API **(FREE)**

 [Push mirrors](../user/project/repository/repository_mirroring.md#pushing-to-a-remote-repository)
 defined on a project's repository settings are called "remote mirrors", and the

--- a/doc/api/repository_files.md
+++ b/doc/api/repository_files.md
@@ -5,7 +5,7 @@ info: "To determine the technical writer assigned to the Stage/Group associated
 type: reference, api
 ---

-# Repository files API
+# Repository files API **(FREE)**

 **CRUD for repository files**


--- a/doc/api/repository_submodules.md
+++ b/doc/api/repository_submodules.md
@@ -5,7 +5,7 @@ info: "To determine the technical writer assigned to the Stage/Group associated
 type: reference, api
 ---

-# Repository submodules API
+# Repository submodules API **(FREE)**

 > [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/issues/41213) in GitLab 11.5