and mention `search_exclude`

Documentation cleanup

For pages in utilities/, reorder `nav_order` to follow `parent`.

Update bundler requirement from ~> 1.17.1 to ~> 2.0.1

Bump stylelint-config-primer from 3.0.0 to 3.0.1

Updates the requirements on [bundler](https://github.com/bundler/bundler) to permit the latest version.
- [Release notes](https://github.com/bundler/bundler/releases)
- [Changelog](https://github.com/bundler/bundler/blob/v2.0.1/CHANGELOG.md)
- [Commits](https://github.com/bundler/bundler/commits/v2.0.1

)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Fix charset for list item content in scss

Bumps [stylelint-config-primer](https://github.com/primer/primer) from 3.0.0 to 3.0.1.
- [Release notes](https://github.com/primer/primer/releases)
- [Changelog](https://github.com/primer/primer/blob/master/CHANGELOG.md)
- [Commits](https://github.com/primer/primer/compare/v3.0.0...v3.0.1

)

Signed-off-by: dependabot[bot] <support@dependabot.com>

v0.2.1 release

Bumps [stylelint-config-primer](https://github.com/primer/primer) from 2.2.11 to 3.0.0.
- [Release notes](https://github.com/primer/primer/releases)
- [Changelog](https://github.com/primer/primer/blob/master/CHANGELOG.md)
- [Commits](https://github.com/primer/primer/commits/v3.0.0

)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [stylelint](https://github.com/stylelint/stylelint) from 7.13.0 to 9.9.0.
- [Release notes](https://github.com/stylelint/stylelint/releases)
- [Changelog](https://github.com/stylelint/stylelint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/stylelint/stylelint/compare/7.13.0...9.9.0

)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.4 to 4.17.11. **This update includes security fixes.**
- [Release notes](https://github.com/lodash/lodash/releases)
- [Changelog](https://github.com/lodash/lodash/blob/master/CHANGELOG)
- [Commits](https://github.com/lodash/lodash/compare/4.17.4...4.17.11

)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Indented the title for aux_link

The indent is required for the aux links to work.

v0.2.0 release