Docs: Add when to use Jest section in frontend_testing

See merge request gitlab-org/gitlab-ce!32760

Edits to Lists section of Documentation Style Guide

See merge request gitlab-org/gitlab-ce!32782

This references an issue that is closed

See merge request gitlab-org/gitlab-ce!29274

Provide urls for Merge Requests and Issue links

See merge request gitlab-org/gitlab-ce!32401

Cosmetic fix in doc/user/markdown.md where the word 'itself' is repeated.

See merge request gitlab-org/gitlab-ce!32818

Document CI_RUNNER_SHORT_TOKEN variable

See merge request gitlab-org/gitlab-ce!32824

Variable was added in GitLab Runner with:
https://gitlab.com/gitlab-org/gitlab-runner/merge_requests/1571

docs: add full omnibus example for smime signing

See merge request gitlab-org/gitlab-ce!32146

- minor style corrections
- document rsa keys limitation

Update merge_request_approvals.md - typo

See merge request gitlab-org/gitlab-ce!32838

Fix typo in repository storage types doc

See merge request gitlab-org/gitlab-ce!32858

Update repository_storage_types.md : fixed typo

See merge request gitlab-org/gitlab-ee!16227

Revert gitlab-backup command and add a note for it

Closes #65889

See merge request gitlab-org/gitlab-ce!31747

Use streaming results instead of OFFSET/LIMIT on Geo backfilling workers

See merge request gitlab-org/gitlab-ee!15457

Expose :protected field for ../tags/:tag_name API endpoint

See merge request gitlab-org/gitlab-ce!32790

Realign dependency scanning doc from EE to CE

See merge request gitlab-org/gitlab-ce!32851

Docs: Corrected CI to CD in introduction

Closes #66005

See merge request gitlab-org/gitlab-ce!32787

documentation grammar fix "this" -> "these" in vuex.md

See merge request gitlab-org/gitlab-ce!32847