Link fix in docs.

Author: MarkosKon

packages/docs/src/pages/styling-mdx.mdx

@@ -87,7 +87,7 @@ colors and other styles can be added to `theme.styles.pre` to target child eleme
 Prism.js adds `<span>` elements with class names that can be used as child selectors.
 
 
-To enable syntax highlighting in MDX, see the [`@theme-ui/prism`](/prism) package.
+To enable syntax highlighting in MDX, see the [`@theme-ui/prism`](/packages/prism) package.
 
 [prism.js]: https://github.com/PrismJS/prism