Add name change note to markdown.md

doc/operations/metrics/embed.md

@@ -7,7 +7,7 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 # Embedding metric charts within GitLab Flavored Markdown **(FREE)**
 
 You can display metrics charts within
-[GitLab Flavored Markdown](../../user/markdown.md#gitlab-flavored-markdown)
+[GitLab Flavored Markdown (GLFM)](../../user/markdown.md)
 fields such as issue or merge request descriptions. The maximum number of embedded
 charts allowed in a GitLab Flavored Markdown field is 100.
 Embedding charts is useful when sharing an application incident or performance

doc/user/markdown.md

@@ -4,7 +4,9 @@ group: Source Code
 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
 ---
 
-# GitLab Flavored Markdown **(FREE)**
+# GitLab Flavored Markdown (GLFM) **(FREE)**
+
+> The abbreviation [changed](https://gitlab.com/gitlab-org/gitlab/-/issues/24592) from `GFM` to `GLFM` in GitLab 14.10.
 
 GitLab automatically renders Markdown content. For example, when you add a comment to an issue,
 you type the text in the Markdown language. When you save the issue, the text is rendered

doc/user/project/web_ide/index.md

@@ -222,7 +222,7 @@ To edit Markdown files in the Web IDE:
 
 1. Go to your repository, and navigate to the Markdown page you want to edit.
 1. Select **Open in Web IDE**, and GitLab loads the page in a tab in the editor.
-1. Make your changes to the file. GitLab supports [GitLab Flavored Markdown](../../markdown.md#gitlab-flavored-markdown).
+1. Make your changes to the file. GitLab supports [GitLab Flavored Markdown (GLFM)](../../markdown.md).
 1. When your changes are complete, select **Commit** in the left sidebar.
 1. Add a commit message, select the branch you want to commit to, and select **Commit**.