docs: fix broken link in code blocks docs (#8993)

website/docs/guides/markdown-features/markdown-features-code-blocks.mdx

@@ -59,7 +59,7 @@ console.log('Every repo must come with a mascot.');
 
 ### Theming {#theming}
 
-By default, the Prism [syntax highlighting theme](https://github.com/FormidableLabs/prism-react-renderer#theming) we use is [Palenight](https://github.com/FormidableLabs/prism-react-renderer/blob/master/src/themes/palenight.js). You can change this to another theme by passing `theme` field in `prism` as `themeConfig` in your docusaurus.config.js.
+By default, the Prism [syntax highlighting theme](https://github.com/FormidableLabs/prism-react-renderer#theming) we use is [Palenight](https://github.com/FormidableLabs/prism-react-renderer/blob/master/packages/prism-react-renderer/src/themes/palenight.ts). You can change this to another theme by passing `theme` field in `prism` as `themeConfig` in your docusaurus.config.js.
 
 For example, if you prefer to use the `dracula` highlighting theme: