Bump markdown-it from 11.0.0 to 12.3.2 in /docs

Bumps [markdown-it](https://github.com/markdown-it/markdown-it) from 11.0.0 to 12.3.2.
- [Release notes](https://github.com/markdown-it/markdown-it/releases)
- [Changelog](https://github.com/markdown-it/markdown-it/blob/master/CHANGELOG.md)
- [Commits](https://github.com/markdown-it/markdown-it/compare/11.0.0...12.3.2)

---
updated-dependencies:
- dependency-name: markdown-it
  dependency-type: direct:production
...

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

docs/package.json

@@ -394,7 +394,7 @@
     "map-age-cleaner": "^0.1.3",
     "map-cache": "^0.2.2",
     "map-visit": "^1.0.0",
-    "markdown-it": "^11.0.0",
+    "markdown-it": "^12.3.2",
     "markdown-it-anchor": "^5.3.0",
     "markdown-it-chain": "^1.3.0",
     "markdown-it-container": "^3.0.0",