Update docker-compose.yml

docker-compose.yml

@@ -10,7 +10,11 @@ services:
       - 8888:8888
     depends_on:
       - mongo
-  
+    volumes:
+      - ./work:/home/jovyan/work
+
   mongo:
     image: mongo
     restart: always
+    volumes:
+      - ./db:/data/db