Document remark/rehype (#938)

kevinzunigacuellar · astrobot-houston · HiDeoo · web-flow · commit ba7063556a2f · 2023-10-27T10:46:10.000-07:00
Co-authored-by: Houston (Bot) &lt;108291165+astrobot-houston@users.noreply.github.com&gt;
Co-authored-by: HiDeoo &lt;494699+HiDeoo@users.noreply.github.com&gt;
Co-authored-by: Chris Swithinbank &lt;357379+delucis@users.noreply.github.com&gt;
Co-authored-by: Elian ☕️ &lt;15145918+ElianCodes@users.noreply.github.com&gt;
diff --git a/docs/src/content/docs/guides/authoring-content.md b/docs/src/content/docs/guides/authoring-content.md
@@ -207,3 +207,7 @@ Long, single-line code blocks should not wrap. They should horizontally scroll i
 ## Other common Markdown features
 
 Starlight supports all other Markdown authoring syntax, such as lists and tables. See the [Markdown Cheat Sheet from The Markdown Guide](https://www.markdownguide.org/cheat-sheet/) for a quick overview of all the Markdown syntax elements.
+
+## Advanced Markdown and MDX configuration
+
+Starlight uses Astro’s Markdown and MDX renderer built on remark and rehype. You can add support for custom syntax and behavior by adding `remarkPlugins` or `rehypePlugins` in your Astro config file. See [“Configuring Markdown and MDX”](https://docs.astro.build/en/guides/markdown-content/#configuring-markdown-and-mdx) in the Astro docs to learn more.
