Fixup markdown document structure

Closes gitlab-org/build/team-tasks#38

See merge request gitlab-org/gitlab-ee!3381

Fix markdown for other components

Closes gitlab-org/build/team-tasks#42

See merge request gitlab-org/gitlab-ee!3382

EE port of enable-scss-lint-unnecessary-mantissa

See merge request gitlab-org/gitlab-ee!3330

Move ee-only workers to top-level ee directory

See merge request gitlab-org/gitlab-ee!3367

This seems to have been intended to be a list, fix the markup so it is
one.

https://gitlab.com/gitlab-org/build/team-tasks/issues/42

Geo: Improve error handling

Closes #3119

See merge request gitlab-org/gitlab-ee!3290

Pgbouncer is its own section.

https://gitlab.com/gitlab-org/build/team-tasks/issues/38

Resolve "Error reading commit status in JenkinsDeprecatedService"

Closes #3335

See merge request gitlab-org/gitlab-ee!3363

Paginated epics list

Closes #3553

See merge request gitlab-org/gitlab-ee!3254

[EE] Change Page::Main::Entry to only visit an entrypoint and introduce…

See merge request gitlab-org/gitlab-ee!3371

Mention PostgreSQL replication changes in Geo update documentation

See merge request gitlab-org/gitlab-ee!3349

Export project, projectAvatar and projectImport as ES6 modules

See merge request gitlab-org/gitlab-ee!3373

Reorganize landing page for new users - EE

See merge request gitlab-org/gitlab-ee!3317

Remove ineffective Vue service specs -- EE merge edition

See merge request gitlab-org/gitlab-ee!3309

Merge branch 'ee-wrong-case-for-roles-header-in-allowed-to-create-project-settings-dropdown' into 'master'

Add capitalize-header class to the projects dropdown on EE

See merge request gitlab-org/gitlab-ee!3353

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Move sidebar app spec to correct location

Closes #4015

See merge request gitlab-org/gitlab-ee!3369

Fix bad merge conflict in MySQL to PostgreSQL doc

See merge request gitlab-org/gitlab-ee!3354

Document adding non-standard SSL certificates to the Geo secondary

Closes #2857

See merge request gitlab-org/gitlab-ee!3325

[EE] Change Page::Main::Entry to only visit an entrypoint and introduce Page::Main::Login to handle actual log-in
Signed-off-by: Rémy Coutable <remy@rymai.me>

Refactor Geo::MoveRepositoryService

Closes #3950

See merge request gitlab-org/gitlab-ee!3334

Decouple QA test instance address - EE version

Closes gitlab-qa#88

See merge request gitlab-org/gitlab-ee!3366