Reword upgrading/reconfiguring

Signed-off-by: Adam Warner <me@adamwarner.co.uk>

docs/docker/upgrading/index.md

@@ -7,8 +7,8 @@ The standard Pi-hole customization abilities apply to this docker, but with dock
 
 ## Upgrading / Reconfiguring
 
-!!! Warning
-    Do not attempt to upgrade (`pihole -up`) or reconfigure (`pihole -r`). New images will be released for upgrades, upgrading by replacing your old container with a fresh upgraded image is the 'docker way'. Long-living docker containers are not the docker way since they aim to be portable and reproducible, why not re-create them often! Just to prove you can.
+!!! Note
+    The normal Pi-hole functions to upgrade (`pihole -up`) or reconfigure (`pihole -r`) are disabled within the docker container. New images will be released, and you can upgrade by replacing your old container with a fresh upgraded image, which is more in line with the 'docker way'. Long-living docker containers are not the docker way since they aim to be portable and reproducible, why not re-create them often! Just to prove you can.
 
 ### Docker Compose