Merge pull request #1686 from plone/update_volto_migration_link

link to finished docs, not to ticket

Author: mauritsvanrees

docs/backend/upgrading/version-specific-migration/migrate-to-volto.md

@@ -107,5 +107,5 @@ It is recommended to use the default settings, but you can choose to skip some m
 If you are migrating an existing site to Plone 6 using [{py:mod}`collective.exportimport`](https://pypi.org/project/collective.exportimport) and want to use Volto in the new site, then you do not need to use the form `@@migrate_to_volto`.
 
 All the changes documented above can be done efficiently during export and import.
-[Read details](https://github.com/collective/collective.exportimport/issues/133).
+[Read details](https://github.com/collective/collective.exportimport?tab=readme-ov-file#migrate-to-volto).
 ```