Upgrade: bump markdownlint-cli from 0.23.1 to 0.23.2 (#89)

Bumps [markdownlint-cli](https://github.com/igorshubovych/markdownlint-cli) from 0.23.1 to 0.23.2.
- [Release notes](https://github.com/igorshubovych/markdownlint-cli/releases)
- [Commits](igorshubovych/markdownlint-cli@v0.23.1...v0.23.2)

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