Bump prismjs from 1.29.0 to 1.30.0 in /docs (#369) (#381)

Bumps [prismjs](https://github.com/PrismJS/prism) from 1.29.0 to 1.30.0.
- [Release notes](https://github.com/PrismJS/prism/releases)
- [Changelog](https://github.com/PrismJS/prism/blob/master/CHANGELOG.md)
- [Commits](PrismJS/prism@v1.29.0...v1.30.0)

---
updated-dependencies:
- dependency-name: prismjs
  dependency-type: indirect
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
(cherry picked from commit 3f11852)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: mergify[bot]