Cleanup: Remove local dev files (docker-compose, db-init) and update README for production Docker usage

docker-compose.yml

@@ -1,55 +0,0 @@
-version: '3.8'
-
-services:
-  app:
-    build: .
-    container_name: cazubu-app
-    ports:
-      - "8090:80"
-    volumes:
-      - ./src:/var/www/html
-    environment:
-      - DB_SERVER=db
-      - DB_USERNAME=cazubu
-      - DB_PASSWORD=dev_secret
-      - DB_NAME=cazubu
-    depends_on:
-      - db
-    networks:
-      - cazubu-net
-
-  db:
-    image: mariadb:10.11
-    container_name: cazubu-db
-    environment:
-      - MYSQL_ROOT_PASSWORD=root_secret
-      - MYSQL_DATABASE=cazubu
-      - MYSQL_USER=cazubu
-      - MYSQL_PASSWORD=dev_secret
-    volumes:
-      - db_data:/var/lib/mysql
-      - ./db-init:/docker-entrypoint-initdb.d
-    ports:
-      - "3306:3306"
-    networks:
-      - cazubu-net
-
-  phpmyadmin:
-    image: phpmyadmin/phpmyadmin
-    container_name: cazubu-pma
-    environment:
-      - PMA_HOST=db
-      - PMA_USER=cazubu
-      - PMA_PASSWORD=dev_secret
-    ports:
-      - "8081:80"
-    depends_on:
-      - db
-    networks:
-      - cazubu-net
-
-volumes:
-  db_data:
-
-networks:
-  cazubu-net: