📝 Writing docs. 优化docker-compose xxl-job jdbc

docker-compose.yml

@@ -28,7 +28,7 @@ services:
     image: pig4cloud/xxl-job-admin:2.1.2
     restart: always
     environment:
-      - PARAMS="--spring.datasource.url=jdbc:mysql://pigx-mysql:3306/pigxx_job?Unicode=true&characterEncoding=UTF-8 --spring.datasource.username=root --spring.datasource.password=root"
+      PARAMS: "--spring.datasource.url=jdbc:mysql://pigx-mysql:3306/pigxx_job?Unicode=true&characterEncoding=UTF-8 --spring.datasource.username=root --spring.datasource.password=root"
     ports:
       - 9080:8080