Push in some quick and dirty changes. This work is not complete nor
is it fully correct, but I do not want to hold up this work for two
weeks. I will ask the creator to make a follow-up issue for 14.7 for
me to give this page the fuller once-over it truly needs.

Improve feature specs

See merge request gitlab-org/gitlab!75253

Update doc/user/markdown.md to fix a typo

See merge request gitlab-org/gitlab!75662

Fix related branch text alignment

See merge request gitlab-org/gitlab!75660

Prepare for ci background migration worker

See merge request gitlab-org/gitlab!72916

Cleanup feature flag "reference_cache_memoization"

See merge request gitlab-org/gitlab!74511

Changelog: other

Revert: Update Tier for DevOps Reports"

See merge request gitlab-org/gitlab!75658

[ci skip]

Update code quality endpoint feature categories

See merge request gitlab-org/gitlab!75048

Remove reference to lower_relation_max_count_limit

See merge request gitlab-org/gitlab!75482

Refactor BulkImport graphql queriable methods

See merge request gitlab-org/gitlab!75385

Update feature categories for 2021-12-01

See merge request gitlab-org/gitlab!75644

Update Content Editor Packages

See merge request gitlab-org/gitlab!75370

Add docs style guideline for the right sidebar

See merge request gitlab-org/gitlab!75358

Create ci_namespace_mirrors and ci_project_mirrors tables

See merge request gitlab-org/gitlab!75621

Update documentation with Storage purchase flow

See merge request gitlab-org/gitlab!75257

Update sidekiq-cluster interval documentation

See merge request gitlab-org/gitlab!75291

Move JS milestones code to ~/milestones [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!75363

Document env var GITLAB_MARKUP_TIMEOUT

See merge request gitlab-org/gitlab!75650

Fix  logging method_missing commands in Redis::Multistore

See merge request gitlab-org/gitlab!75630

See https://gitlab.com/gitlab-org/gitlab-markup/-/merge_requests/33

Remove dependency_proxy_manifest_workhorse ff

See merge request gitlab-org/gitlab!74669

Heartbeat runner only for specific job-context requests

See merge request gitlab-org/gitlab!75022

The only category here which was used was `google_cloud`, but I can't
find that on our website. I think it belongs to
`five_minute_production_app`:
https://about.gitlab.com/handbook/engineering/incubation/5-min-production/

E2E: Validate project wiki migration

See merge request gitlab-org/gitlab!75473

Blob refactor: Use PDF Viewer when vewing a PDF blob

See merge request gitlab-org/gitlab!75469

- Fix block for anonymous session

Add some filtered search token improvements and fixes

See merge request gitlab-org/gitlab!75103