Clarify the status of unit images in documentation, indicating that while they can still be pulled, they will not receive future updates. Emphasize the importance of planning migration away from these images.

Author: jaydrogers

docs/content/docs/2.image-variations/unit.md

@@ -50,8 +50,7 @@ All of these variations are actively maintained and production-ready.
 ### How urgent is this migration?
 
 **Timeline:**
-- **Now:** Unit images work but receive no updates
-- **Next release:** Unit images will be removed from our project
+- **Now:** You can still pull `serversideup/php:unit` images, but they will not receive any future feature or security updates.
 
 **Recommendation:** Start planning your migration now. Don't rush, but don't delay indefinitely.