Update 'docker-stack.yml'

docker-stack.yml

@@ -28,7 +28,7 @@ services:
     networks:
       - frontend
     deploy:
-      replicas: 2
+      replicas: 1
 
   result:
     image: dockersamples/examplevotingapp_result
@@ -43,7 +43,7 @@ services:
       - frontend
       - backend
     deploy:
-      replicas: 2
+      replicas: 1
 
 networks:
   frontend: