Refactor: Rename docker-compose.yml to example and update README

docker-compose.example.yml

@@ -0,0 +1,20 @@
+version: '3'
+
+services:
+  hoerdle:
+    container_name: hoerdle
+    build:
+      context: .
+      dockerfile: Dockerfile
+    restart: always
+    ports:
+      - "3010:3000"
+    environment:
+      - DATABASE_URL=file:/app/data/prod.db
+      - ADMIN_PASSWORD=admin123 # Change this!
+    volumes:
+      - ./data:/app/data
+      - ./public/uploads:/app/public/uploads
+    # Initialize DB if needed
+    command: >
+      sh -c "npx prisma db push && node server.js"