Wordpress config: Differentiate the service name from the container name.

Config/WordpressExample/docker-compose.example.yml

@@ -17,7 +17,7 @@
 
 services:
 
-  wp-db:
+  db:
     container_name: wp-db
     image: mariadb:lts
     restart: always
@@ -45,17 +45,17 @@ services:
           cpus: $WP_CPU_DB
           memory: $WP_MEM_DB
 
-  wp-app:
+  app:
     container_name: wp-app
     image: wordpress:latest
     restart: always
     ports:
       - 8080:80
     depends_on:
-      wp-db:
+      db:
         condition: service_healthy
     links:
-      - wp-db
+      - db
     volumes:
       - ../../Volumes/WordPress/wordpress:/var/www/html
     environment: