Update readme with two options

README.md

+# TP MongoDB
+
+
+## Start docker 
+
+### Option 1 (mongo containerized, node locally)
+
 build and run MongoDB and Node.js API with `orders.json` dump:
 
 ```
@@ -17,6 +24,14 @@ use mongodb (mongo shell):
 docker-compose exec mongo-orders mongo admin
 ```
 
+### Option 2 (mongo and node containerized)
+
+```js
+docker-compose -f docker-compose-with-node.yml up --build -d
+```
+
+## Use MongoDB
+
 in mongodb shell:
 
 ```js
@@ -46,12 +61,24 @@ db.orders.find().map( obj => obj.vendors );
 ```
 
 
-## Serveur HTTP
+## Use a HTTP Serveur (optional)
+
+### Using node locally (option 1)
+
+```js
+cd api
+npm install
+npm start
+```
+
+API in Node.js available, example route http://localhost:3000/by-customer-pseudo/A**D
+
+### Using node locally (option 2)
 
-API in Node.js available, example route http://localhost:8080/by-customer-pseudo/A**D
+API already available at http://localhost:8080/by-customer-pseudo/A**D
 
-## Missions
 
+# Missions
 
 ### Contraintes
 
@@ -68,7 +95,8 @@ API in Node.js available, example route http://localhost:8080/by-customer-pseudo
 6. pour chaque client (id et pseudo), comptez le nombre de commandes
 7. pour chaque vendeur, comptez le chiffre d'affaire (indication: `$unwind`)
 
-## Vos solutions
+
+# Vos solutions
 
 ### requête 1 
 

docker-compose-with-node.yml

+version: '2'
+services:
+    mongo-orders:
+        image: mongo
+        ports:
+            - '27017:27017'
+    mongo-seed:
+        build: ./mongodb
+        depends_on:
+            - mongo-orders
+    api:
+        build: ./api
+        ports:
+            - '8080:8080'
+        depends_on:
+            - mongo-orders

docker-compose.yml

@@ -8,9 +8,3 @@ services:
         build: ./mongodb
         depends_on:
             - mongo-orders
-    api:
-        build: ./api
-        ports:
-            - '8080:8080'
-        depends_on:
-            - mongo-orders