update nextcloud wording

Signed-off-by: Simon L <[email protected]>

nextcloud/deprecated.md

@@ -1,3 +1,3 @@
 # IMPORTANT NOTE
 
-⚠ This image is not officially supported by Nextcloud GmbH, use at your own risk. Use the [All-in-One docker image](https://github.com/nextcloud/all-in-one#nextcloud-all-in-one) for easier deployment.
+⚠️⚠️⚠️ This image is maintained by community volunteers and designed for expert use. For quick and easy deployment that supports the full set of Nextcloud Hub features, use the [Nextcloud All-in-One docker container](https://github.com/nextcloud/all-in-one#nextcloud-all-in-one) maintained by Nextcloud GmbH.