Also includes some basic fixes to Markdown to make it
adhere to styleguide.

Remove duplicated item in Administration Documentation

See merge request gitlab-org/gitlab-ce!21933

Update wiki empty state

See merge request gitlab-org/gitlab-ce!22218

Reorganize menu files

Closes gitlab-org/quality/team-tasks#60

See merge request gitlab-org/gitlab-ce!22115

Resolve "Link for RBAC (experimental support) is going to the wrong anchor"

See merge request gitlab-org/gitlab-ce!22216

Remove unencrypted webhook token and URL columns

Closes #52367

See merge request gitlab-org/gitlab-ce!22199

Resolve "pipeline's page shows vue error on master"

Closes #52372

See merge request gitlab-org/gitlab-ce!22201

Remove a duplicated word in the README file

See merge request gitlab-org/gitlab-ce!22200

Resolve "Harmonize prettier and eslint configs"

Closes #52233

See merge request gitlab-org/gitlab-ce!22126

Improve downstream pipeline trigger class

See merge request gitlab-org/gitlab-ce!22110

Assert prod environment is live after Auto Devops

See merge request gitlab-org/gitlab-ce!22131

doc-Resolve "Add Troubleshooting to Github Import"

Closes #43953

See merge request gitlab-org/gitlab-ce!17583

Improve the Repository files documentation

See merge request gitlab-org/gitlab-ce!22225

Signed-off-by: Rémy Coutable <remy@rymai.me>

QA: Use basic auth to create cluster role binding

See merge request gitlab-org/gitlab-ce!22190

Documentation for feature flags defaulting to on

Closes gitlab-ee#7883

See merge request gitlab-org/gitlab-ce!22157

Add missed files

Use correct method

Implement review feedback

Add missing frozen_string_literal

Squash 5 commits

docs/Tsumitsu Fix render issue in GFM documentation page

See merge request gitlab-org/gitlab-ce!21997

Use the standard PIP_CACHE_DIR for Python dependency caching template

Closes #52408

See merge request gitlab-org/gitlab-ce!22211

Fix links that 404 and style changes

See merge request gitlab-org/gitlab-ce!22209

Adds the corresponding qa-* classes into the view files for each new
Page element we added.

Adjust the click actions to match.

- Align heading text to the left according to #40468

Reject invalid branch names in repository compare controller

Closes #51003

See merge request gitlab-org/gitlab-ce!22186

Rails5: fix user edit profile clear status spec

See merge request gitlab-org/gitlab-ce!22169

Update to latest version of contributor-covenant.

See merge request gitlab-org/gitlab-ce!21995

The RBAC section header was changed, causing the anchor to change as
well. For our first release with RBAC support, it is important
we get the link right.

QA: Allow the registration e2e test to be skipped

See merge request gitlab-org/gitlab-ce!22205

Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

The `--username` and `--password` top level options have been removed.

Fortunately we have a backwards compatible way of setting the
credentials via `kubectl config set-credentials <name>`, and using the
`--user <name>` top level option which is available at least in 1.10
(and possibly farther back).

- Some links internal links were incorrect.
- Removed some #overview anchor links, because they don't
  jump much content.
- Made text confirm to suggested proselint and mardownlint rules.

Bump rugged to 0.27.5 for security fixes

See merge request gitlab-org/gitlab-ce!22208

See: https://github.com/libgit2/libgit2/releases