adding new images for change in voting app .yml

finishing touches on documenting updated .yml

modifed more images and text per new .yml config

more updates to images

Signed-off-by: Victoria Bialas <victoria.bialas@docker.com>

engine/getstarted-voting-app/deploy-app.md

@@ -79,12 +79,12 @@ We'll deploy the application from the manager.
     ```
     docker@manager:~$ docker stack services vote
     ID            NAME             MODE        REPLICAS  IMAGE
-    0y3q6lgc0drn  vote_result      replicated  2/2       dockersamples/examplevotingapp_result:before
-    fvsaqvuec4yw  vote_redis       replicated  2/2       redis:alpine
-    igev2xk5s3zo  vote_worker      replicated  1/1       dockersamples/examplevotingapp_worker:latest
-    vpfjr9b0qc01  vote_visualizer  replicated  1/1       dockersamples/visualizer:stable
-    wctxjnwl22k4  vote_vote        replicated  2/2       dockersamples/examplevotingapp_vote:before
-    zp0zyvgaguox  vote_db          replicated  1/1       postgres:9.4
+    1zkatkq7sf8n  vote_result      replicated  1/1       dockersamples/examplevotingapp_result:after
+    hphnxyt93h42  vote_redis       replicated  2/2       redis:alpine
+    jd0wafumrcil  vote_vote        replicated  2/2       dockersamples/examplevotingapp_vote:after
+    msief4cqme29  vote_visualizer  replicated  1/1       dockersamples/visualizer:stable
+    qa6y8sfmtjoz  vote_db          replicated  1/1       postgres:9.4
+    w04bh1vumnep  vote_worker      replicated  1/1       dockersamples/examplevotingapp_worker:latest
     ```
 
 ## What's next?

engine/getstarted-voting-app/index.md

@@ -175,7 +175,7 @@ services:
     depends_on:
       - db
     deploy:
-      replicas: 2
+      replicas: 1
       update_config:
         parallelism: 2
         delay: 10s
@@ -196,6 +196,8 @@ services:
         delay: 10s
         max_attempts: 3
         window: 120s
+      placement:
+        constraints: [node.role == manager]
 
   visualizer:
     image: dockersamples/visualizer:stable

engine/getstarted-voting-app/test-drive.md

@@ -48,9 +48,10 @@ action here. For example:
 *   Two of the services are replicated:
 
     *   `vote` (represented in the visulizer by `vote_vote`)
-    *   `result` (represented in the visulizer by `vote_result`)
+    *   `redis` (represented in the visulizer by `vote_redis`)
 
-    Both of these services are configured as `replicas: 2` under the `deploy` key. In the current state of this app, one of each is running on a manager and on a worker. However, since neither are explicitly constrained to either node in `docker-stack.yml`, all or some of these services could be running on either node, depending on workload and re-balancing choices we've left to the swarm orchestration.
+    Both of these services are configured as `replicas: 2` under
+    the `deploy` key. In the current state of this app (shown in the visualizer), one of each of these containers is running on a manager and on a worker. However, since neither are explicitly constrained to either node in `docker-stack.yml`, all or some of these services could be running on either node, depending on workload and re-balancing choices we've left to the swarm orchestration.
 
     ![replicas in yml](images/replicas-constraint.png)