Add rehype-mdx-import-media to list of plugins

Closes GH-2472.

Reviewed-by: Titus Wormer <tituswormer@gmail.com>

Author: remcohaszing

Diff for: docs/docs/extending-mdx.mdx

@@ -86,14 +86,14 @@ See also the [list of remark plugins][remark-plugins] and
   exposing top level identifiers in Next.js
 * [`remcohaszing/rehype-mdx-code-props`](https://github.com/remcohaszing/rehype-mdx-code-props)
   — interpret the code `meta` field as JSX props
+* [`remcohaszing/rehype-mdx-import-media`](https://github.com/remcohaszing/rehype-mdx-import-media)
+  — change media sources to JavaScript imports
 * [`remcohaszing/rehype-mdx-title`](https://github.com/remcohaszing/rehype-mdx-title)
   — expose the page title as a string
 * [`pangelani/remark-mdx-chartjs`](https://github.com/pangelani/remark-mdx-chartjs)
   — replace fenced code blocks with charts using [`react-chartjs-2`](https://react-chartjs-2.js.org/).
 * [`remcohaszing/remark-mdx-frontmatter`](https://github.com/remcohaszing/remark-mdx-frontmatter)
   — change frontmatter (YAML) metadata to exports
-* [`remcohaszing/remark-mdx-images`](https://github.com/remcohaszing/remark-mdx-images)
-  — change image sources to JavaScript imports
 * [`goodproblems/remark-mdx-math-enhanced`](https://github.com/goodproblems/remark-mdx-math-enhanced)
   — enhance math with JavaScript inside it