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website/docs/guides/markdown-features/markdown-features-plugins.mdx

@@ -60,7 +60,7 @@ In case you are wondering how Remark and Rehype are different, here is a good ex
 
 Next, the `rehype-katex` operates on the Hypertext AST where everything has been converted to HTML-like tags already. It traverses all the elements with `math` class, and uses $\KaTeX$ to parse and render the content to actual HTML.
 
-<details>
+</details>
 
 Next, add them to the plugin options through plugin or preset config in `docusaurus.config.js`: