Update docs

docs/releasing/publishing.md

@@ -79,14 +79,9 @@ Developers should pair on releases. When remote working, it can be useful to be
 
 ## Create a release on Github
 
-To create a new GitHub release, do the following:
-
-1. Select the tag corresponding to the release in [the list of tags on GitHub](https://github.com/alphagov/govuk-frontend/tags)
-2. Press **Create release from tag**
-3. Set 'GOV.UK Frontend v[version]' as the title
-4. Add release notes from [`CHANGELOG.md`](/CHANGELOG.md)
-5. Attach as release binary the ZIP file that has been generated at the root of this project during the npm publishing phase
-6. Publish release
+1. Open the ["RELEASE: Publish to GitHub" workflow](https://github.com/alphagov/govuk-frontend/actions/workflows/publish-release-to-github.yaml) and run the workflow on the `main` branch. This will generate a GitHub tag and release.
+
+2. [Verify the release](https://github.com/alphagov/govuk-frontend/releases) and check that its description looks correct, and that its assets include a zip file.
 
 # After you publish the new release