Fix broken team docs link

docs/releasing/publishing.md

@@ -2,7 +2,7 @@
 
 Read the docs for [what to do before publishing a release](/docs/releasing/before-publishing-a-release.md) to ensure you are prepared to publish.
 
-See the [documentation on support branches](https://govuk-design-system-team-docs.netlify.app/how-we-work/version-control/support-branches.html#support-branches) if you need to:
+See the [documentation on support branches](https://govuk-design-system-team-docs.netlify.app/guides/version-control/support-branches/#support-branches) if you need to:
 
 - publish a new release of previous major versions of GOV.UK Frontend
 - publish a ‘hotfix’ release of GOV.UK Frontend without including other unreleased changes on the `main` branch