chore: format spacing in docker-compose.yml for improved readability

docker-compose.yml

@@ -34,7 +34,7 @@ services:
       - "5432:5432"
     volumes:
       - postgres_data:/var/lib/postgresql/data
-      -${INIT_SQL:-./scripts/init.sql}:/docker-entrypoint-initdb.d/init.sql
+      - ${INIT_SQL:-./scripts/init.sql}:/docker-entrypoint-initdb.d/init.sql
     healthcheck:
       test: ["CMD-SHELL", "pg_isready -U peakskills_user -d peakskills"]
       interval: 10s