Update README.md

Author: Marcisbee

README.md

@@ -26,7 +26,7 @@ Add a file named `CNAME` to your repo (in the `gh-pages` branch for project page
 
 If you're [publishing using a workflow](https://docs.github.com/en/pages/getting-started-with-github-pages/configuring-a-publishing-source-for-your-github-pages-site#publishing-with-a-custom-github-actions-workflow):
 
-A `CNAME` file will not be processed when publishing a site via a workflow, so you will need to use the UI in the repository settings to [add the custom domain](https://help.github.com/articles/adding-or-removing-a-custom-domain-for-your-github-pages-site). Head into the repository settings and under the Pages tab add your JS.ORG subdomain as a custom domain.
+A `CNAME` file will not be processed when publishing a site via a workflow, so you will need to use the UI in the repository settings to [add the custom domain](https://docs.github.com/en/pages/configuring-a-custom-domain-for-your-github-pages-site/managing-a-custom-domain-for-your-github-pages-site#configuring-a-subdomain). Head into the repository settings and under the Pages tab add your JS.ORG subdomain as a custom domain.
 
 ### Step 4