fix: docker-compose.yml ";" -> ":"

命令行启动：
docker run -d --name test_zookeeper -p 2181:2181 -e ZOO_MY_ID=1 -e ZOO_SERVERS=server.1=zoo1:2888:3888;2181 -h zoo1 zook
eeper:3.9.0

报错信息：
"docker run" requires at least 1 argument.
See 'docker run --help'.

Usage:  docker run [OPTIONS] IMAGE [COMMAND] [ARG...]

Create and run a new container from an image
zsh: command not found: 2181

docs/dev-ops/docker-compose.yml

@@ -10,4 +10,4 @@ services:
       - 2181:2181
     environment:
       ZOO_MY_ID: 1
-      ZOO_SERVERS: server.1=zoo1:2888:3888;2181
\ No newline at end of file
+      ZOO_SERVERS: server.1=zoo1:2888:3888:2181