Revert "adjusted compose files name"

This reverts commit dd4d06786e.

bookstack/docker-compose.yaml

@@ -0,0 +1,35 @@
+services:
+  bookstack:
+    image: lscr.io/linuxserver/bookstack
+    container_name: bookstack
+    environment:
+      - PUID=1000
+      - PGID=1000
+      - APP_URL=${APP_URL}
+      - DB_HOST=bookstack_database
+      - DB_PORT=3306
+      - DB_USER=bookstack
+      - DB_PASS=${DB_USER_PASS}
+      - DB_DATABASE=bookstackapp
+    volumes:
+      - ${PATH_TO_CONFIG}:/config
+    ports:
+      - 6875:80
+    restart: unless-stopped
+    depends_on:
+      - bookstack_database
+ 
+  bookstack_database:
+    image: lscr.io/linuxserver/mariadb
+    container_name: bookstack_database
+    environment:
+      - PUID=1000
+      - PGID=1000
+      - MYSQL_ROOT_PASSWORD=${DB_ROOT_PASS}
+      - TZ=${TZ}
+      - MYSQL_DATABASE=bookstackapp
+      - MYSQL_USER=bookstack
+      - MYSQL_PASSWORD=${DB_USER_PASS}
+    volumes:
+      - ${PATH_TO_DB}:/config
+    restart: unless-stopped