Use generic hostnames in repository examples

.env.example

@@ -2,7 +2,7 @@
 SOURCE_BASE_DIR="/dockervolumes"
 BACKUP_ROOT="/dockerbackups"
 CONTAINERS_FILE="containers.local.txt"
-BACKUP_HOSTNAME="beaver"
+BACKUP_HOSTNAME="examplehostname"
 
 # Main pipeline method order. Add future method names here.
 BACKUP_METHODS="rclone smb"
@@ -16,21 +16,21 @@ ZSTD_EXTRA_OPTS="-T0 -12"
 
 # Optional retained MQTT status and command listener settings.
 MQTT_REPORT_ENABLED=0
-MQTT_HOST="beaver"
+MQTT_HOST="examplehostname"
 MQTT_PORT=1883
 MQTT_USERNAME="dockerbackup"
 MQTT_PASSWORD_FILE="/etc/zorruno-docker-backup/mqtt-password"
-MQTT_STATUS_TOPIC="viewroad-status/dockerbackup/beaver"
-MQTT_COMMAND_TOPIC="viewroad-commands/dockerbackup/beaver/run"
+MQTT_STATUS_TOPIC="viewroad-status/dockerbackup/examplehostname"
+MQTT_COMMAND_TOPIC="viewroad-commands/dockerbackup/examplehostname/run"
 
-# Rclone destination becomes <remote>/beaver/.
+# Rclone destination becomes <remote>/examplehostname/.
 RCLONE_ENABLED=0
 RCLONE_REMOTE="gdrive:dockerbackups"
 RCLONE_HOST_SUBDIR=1
 RCLONE_EXTRA_ARGS=""
 
 # The SMB share must already be mounted by the operating system.
-# Destination becomes <mount>/beaver/ when SMB_HOST_SUBDIR=1.
+# Destination becomes <mount>/examplehostname/ when SMB_HOST_SUBDIR=1.
 SMB_ENABLED=0
 SMB_MOUNT="/mnt/dockerbackups"
 SMB_HOST_SUBDIR=1