Update 'docker-compose.yml'

docker-compose.yml

@@ -12,7 +12,7 @@ services:
       database__client: mysql
       database__connection__host: db
       database__connection__user: root
-      database__connection__password: S
+      database__connection__password: ${SECRET}
       database__connection__database: ghost
       # this url value is just an example, and is likely wrong for your environment!
       url: https://tomaskrejci.com
@@ -23,4 +23,4 @@ services:
     image: mysql:8.0
     restart: always
     environment:
-      MYSQL_ROOT_PASSWORD: S
+      MYSQL_ROOT_PASSWORD: ${SECRET}