Docs: Make broker id values unique (#386)

Author: NoRuTnT

documentation/compose/kafbat-ui.yaml

@@ -62,18 +62,18 @@ services:
       - "9093:9092"
       - "9998:9998"
     environment:
-      KAFKA_BROKER_ID: 1
+      KAFKA_BROKER_ID: 2
       KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: 'CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT'
       KAFKA_ADVERTISED_LISTENERS: 'PLAINTEXT://kafka1:29092,PLAINTEXT_HOST://localhost:9092'
       KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
       KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: 0
       KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1
       KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
       KAFKA_JMX_PORT: 9998
-      KAFKA_JMX_OPTS: -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=kafka0 -Dcom.sun.management.jmxremote.rmi.port=9998
+      KAFKA_JMX_OPTS: -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=kafka1 -Dcom.sun.management.jmxremote.rmi.port=9998
       KAFKA_PROCESS_ROLES: 'broker,controller'
-      KAFKA_NODE_ID: 1
-      KAFKA_CONTROLLER_QUORUM_VOTERS: '1@kafka1:29093'
+      KAFKA_NODE_ID: 2
+      KAFKA_CONTROLLER_QUORUM_VOTERS: '2@kafka1:29093'
       KAFKA_LISTENERS: 'PLAINTEXT://kafka1:29092,CONTROLLER://kafka1:29093,PLAINTEXT_HOST://0.0.0.0:9092'
       KAFKA_INTER_BROKER_LISTENER_NAME: 'PLAINTEXT'
       KAFKA_CONTROLLER_LISTENER_NAMES: 'CONTROLLER'