Update README.md

Adding an sample compose file for docker section

README.md

@@ -80,6 +80,24 @@ docker run -d --name wallos -v /path/to/config/wallos/db:/var/www/html/db \
 -e TZ=Europe/Berlin -p 8282:80 --restart unless-stopped \ 
 bellamy/wallos:latest
 ```
+docker-compose.yml
+```
+version: '3.0'
+
+services:
+  wallos:
+    container_name: wallos
+    image: bellamy/wallos:latest
+    ports:
+      - "8282:80/tcp"
+    environment:
+      TZ: 'America/Toronto'
+    # Volumes store your data between container upgrades
+    volumes:
+      - './db:/var/www/html/db'
+      - './logos:/var/www/html/images/uploads/logos'
+    restart: unless-stopped
+```
 
 ## Usage