Fix content link in contributing.md (#4431)

Co-authored-by: Leo Wang <ab0988956087@gamil.com>

contributing.md

@@ -35,6 +35,7 @@ Find [the content directory inside the relevant roadmap](https://github.com/kamr
 - <p><strong>Do not add things you have not evaluated personally!</strong><br />
   Use your critical thinking to filter out non-essential stuff. Give honest arguments for why the resource should be included. Have you read this book? Can you give a short article?</p>
 - <p><strong>Create a Single PR for Content Additions</strong></p>
-  If you are planning to contribute by adding content to the roadmaps, I recommend you to clone the repository, add content to the [content directory of the roadmap](./content/roadmaps/) and create a single PR to make it easier for me to review and merge the PR.
+
+  If you are planning to contribute by adding content to the roadmaps, I recommend you to clone the repository, add content to the [content directory of the roadmap](./src/data/roadmaps/) and create a single PR to make it easier for me to review and merge the PR.
 - Write meaningful commit messages
 - Look at the existing issues/pull requests before opening new ones