**Describe the bug** On the Notes page, the “Upgrade Guide” link points to a GitHub URL that returns 404 **To Reproduce** Steps to reproduce the behavior: 1. Go to [https://axios-http.com/docs/notes](https://axios-http.com/docs/notes) 2. Click the “Upgrade Guide” link 3. You are redirected to GitHub: https://github.com/axios/axios/blob/v1.x/UPGRADE_GUIDE.md 4. See 404 error on GitHub **Expected behavior** The “Upgrade Guide” link should lead to a valid page with upgrade/migration instructions (and breaking changes) for Axios versions