Bump markdown-it-anchor from 7.0.1 to 7.0.2

Bumps [markdown-it-anchor](https://github.com/valeriangalliat/markdown-it-anchor) from 7.0.1 to 7.0.2.
- [Release notes](https://github.com/valeriangalliat/markdown-it-anchor/releases)
- [Changelog](https://github.com/valeriangalliat/markdown-it-anchor/blob/master/CHANGELOG.md)
- [Commits](https://github.com/valeriangalliat/markdown-it-anchor/compare/v7.0.1...v7.0.2

)

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