Add docker-compose example

readme.md

@@ -11,3 +11,18 @@ Self-hosted start page without the extra stuff.
 ## Configuration
 Service settings can be set through environment variables.
 - `PHOENIX_DB_PATH` - path to the sqlite database.
+
+## Docker-compose example
+```yml
+services:
+  phoenix:
+    image: ghcr.io/ordinary-dev/phoenix
+    volumes:
+      - phoenix:/var/lib/phoenix
+    ports:
+      - 80:80
+    restart: unless-stopped
+
+volumes:
+  phoenix:
+```