Fix wrong path being used in docker-compose.yml

Forgot to change it after moving the directory from /usr/src/app to /app in Dockerfile

docker-compose.yml

@@ -9,10 +9,10 @@ services:
     network_mode: "bridge"
     volumes:
       # Default place to put files, can be removed with other storage system
-      - haste-data:/usr/src/app/data:rw
+      - haste-data:/app/data:rw
 
       # Create config.js from the example config and make changes
-      - ./config.js:/usr/src/app/config.js:ro
+      - ./config.js:/app/config.js:ro
 
       # PostgreSQL unix socket connection for use with pg storage and postgres database on host
       #- /var/run/postgresql:/var/run/postgresql:rw