add: docker-compose sample

docker-compose.yml

@@ -0,0 +1,19 @@
+services:
+  app:
+    image: ghcr.io/soxfor/qbittorrent-natmap:latest
+    container_name: qbittorrent-natmap
+    restart: unless-stopped
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+    environment:
+      - TZ=Etc/UTC
+      - QBITTORRENT_SERVER='ip.a.dd.r'
+      # - QBITTORRENT_PORT=''   # Defaults to 8080
+      # - QBITTORRENT_USER=''   # Defaults to admin
+      # - QBITTORRENT_PASS=''   # Defaults to adminadmin
+      # - VPN_CT_NAME=''        # Defaults to gluetun
+      - VPN_GATEWAY='ip.a.dd.r'
+      # - VPN_IF_NAME=''        # Defaults to tun0
+      # - CHECK_INTERVAL=''     # Defaults to 300sec
+      # - NAT_LEASE_LIFETIME='' # Defaults to 300sec
+    network_mode: "container:gluetun" # Specify the VPN container name here