Fix syntax

docker/mariadb/docker-compose.yaml

@@ -1,16 +1,18 @@
-mariadb:
+version: "3"
-  container_name: mariadb
+services:
-  image: mariadb
+  mariadb:
-  environment:
+    container_name: mariadb
-    - TZ=Europe/Helsinki
+    image: mariadb
-    - MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD}
+    environment:
-  networks:
+      - TZ=Europe/Helsinki
-    - mariadb
+      - MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD}
-  volumes:
+    networks:
-    - /docker/mariadb:/var/lib/mysql
+      - mariadb
-    - /etc/localtime:/etc/localtime:ro
+    volumes:
-  restart: always
+      - /docker/mariadb:/var/lib/mysql
+      - /etc/localtime:/etc/localtime:ro
+    restart: always
 
-networks:
+  networks:
-  db:
+    db:
-    external: true
+      external: true