Added app directory

docker-compose.yml

@@ -2,13 +2,13 @@ version: "3.8"
 
 services:
     api:
-        build: .
+        build: ./app
         ports: 
             - 80:80
         environment:
             - DB_URL=mongodb://db/myTestDB
         volumes:
-            - .:/app
+            - ./app:/app
     db:
         image: mongo
         ports: