Fix config and variable mismatches found in the audit

content/en/3.serveex/2.core/2.docker.md

@@ -157,6 +157,11 @@ services:
       - /var/run/docker.sock:/var/run/docker.sock
 ```
 
+::warning
+
+`WATCHTOWER_REMOVE_VOLUMES=true` deletes a container's anonymous volumes as soon as it's updated. Combined with a `latest` tag, an automatic update can silently wipe data for any app that still stores something in an anonymous (unnamed) volume instead of a bind mount.
+::
+
 #### Set your environment variables
 
 Fill in the `.env` section in Dockge with the following:
@@ -177,8 +182,11 @@ To have Watchtower monitor your other containers, add this to their `compose.yml
 
 ```yaml [compose.yaml]
 ---
-labels:
-  - com.centurylinklabs.watchtower.enable=true
+services:
+  yourapp:
+    # ...
+    labels:
+      - com.centurylinklabs.watchtower.enable=true
 ```
 
 Then restart the modified stacks.