Merge branch 'aqualls-warmup-add-metadata' into 'master'

Update description metadata in five Create files

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/143854



Merged-by: Phillip Wells <pwells@gitlab.com>
Approved-by: Phillip Wells <pwells@gitlab.com>
Reviewed-by: Phillip Wells <pwells@gitlab.com>
Co-authored-by: Amy Qualls <aqualls@gitlab.com>

doc/api/merge_requests.md

@@ -2,6 +2,7 @@
 stage: Create
 group: Code Review
 info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://handbook.gitlab.com/handbook/product/ux/technical-writing/#assignments
+description: "Documentation for the REST API for merge requests in GitLab."
 ---
 
 # Merge requests API

doc/gitlab-basics/add-file.md

@@ -2,6 +2,7 @@
 stage: Create
 group: Source Code
 info: "To determine the technical writer assigned to the Stage/Group associated with this page, see https://handbook.gitlab.com/handbook/product/ux/technical-writing/#assignments"
+description: "Add, commit, and push a file to your Git repository using the command line."
 ---
 
 # Use Git to add a file to a repository

doc/user/project/merge_requests/index.md

@@ -2,6 +2,7 @@
 stage: Create
 group: Code Review
 info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://handbook.gitlab.com/handbook/product/ux/technical-writing/#assignments
+description: "Propose, review, and collaborate on changes to a project."
 ---
 
 # Merge requests

doc/user/project/protected_branches.md

@@ -2,6 +2,7 @@
 stage: Create
 group: Source Code
 info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://handbook.gitlab.com/handbook/product/ux/technical-writing/#assignments
+description: "Protected branches in GitLab restrict who can push to, merge, or modify a Git branch."
 ---
 
 # Protected branches

doc/user/project/repository/web_editor.md

@@ -2,6 +2,7 @@
 stage: Create
 group: IDE
 info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://handbook.gitlab.com/handbook/product/ux/technical-writing/#assignments
+description: "Use the Web Editor to create, upload, and edit text files directly in the GitLab UI."
 ---
 
 # Web Editor