message: Fix broken link slug
diff: @@ -168,7 +168,7 @@ from the API.
  The idea of `urql` is that you can customize the caching behavior amongst
  other things yourself, if needed.
  -[Read more about customizing `urql` in the "Extending & Experimenting" section.](https://formidable.com/open-source/urql/docs/extending-and-experimenting)
  +[Read more about customizing `urql` in the "Extending & Experimenting" section.](https://formidable.com/open-source/urql/docs/extending-&-experimenting)
  ## Server-side rendering
  