Bump markdownlint from 0.17.2 to 0.18.0
Bump markdownlint from 0.17.2 to 0.18.0

Bumps [markdownlint](https://github.com/DavidAnson/markdownlint) from 0.17.2 to 0.18.0.
- [Release notes](https://github.com/DavidAnson/markdownlint/releases)
- [Commits](https://github.com/DavidAnson/markdownlint/compare/v0.17.2...v0.18.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
sagiegurari/grunt-markdownlint