Update 4b_Deploying_ReSeeD_Updates - Example for a valid DOCKER_IMAGE_TAG when backing up the volumes directory

system/deployment/4b_Deploying_ReSeeD_Updates.md

@@ -14,7 +14,7 @@ docker compose -f docker-compose.yml down
 This step is specific to each ReSeeD instance. For example, you could do something like
 ```shell
 # This requires root because most files and directories will be owned by other user IDs
-sudo cp -a volumes volumes_OLD_IMAGE_ID
+sudo cp -a volumes volumes_OLD_IMAGE_TAG  # e. g. volumes_develop-0-gf45f676_2025-01-17T09-04-42UTC
 ```
 
 ## Determine updates to the `.env` file