diff --git a/README.md b/README.md
index 86fc318c..12d08d49 100644
--- a/README.md
+++ b/README.md
@@ -867,6 +867,7 @@ following projects or one of the tools in the [Related section](#Related):
 * [CodiMD](https://github.com/hackmdio/codimd) ([Search repository](https://github.com/hackmdio/codimd/search?q=markdownlint))
 * [ESLint](https://eslint.org/) ([Search repository](https://github.com/eslint/eslint/search?q=markdownlint))
 * [Garden React Components](https://zendeskgarden.github.io/react-components/) ([Search repository](https://github.com/zendeskgarden/react-components/search?q=markdownlint))
+* [MDN Web Docs](https://developer.mozilla.org/) ([Search repository](https://github.com/mdn/content/search?q=markdownlint))
 * [MkDocs](https://www.mkdocs.org/) ([Search repository](https://github.com/mkdocs/mkdocs/search?q=markdownlint))
 * [Mocha](https://mochajs.org/) ([Search repository](https://github.com/mochajs/mocha/search?q=markdownlint))
 * [Reactable](https://glittershark.github.io/reactable/) ([Search repository](https://github.com/glittershark/reactable/search?q=markdownlint))