swarm mode tutorial improvements

modified what's next link to map to left nav TOC

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

engine/swarm/swarm-tutorial/add-nodes.md

@@ -2,6 +2,7 @@
 description: Add nodes to the swarm
 keywords: tutorial, cluster management, swarm
 title: Add nodes to the swarm
+notoc: true
 ---
 
 Once you've [created a swarm](create-swarm.md) with a manager node, you're ready

engine/swarm/swarm-tutorial/create-swarm.md

@@ -2,6 +2,7 @@
 description: Initialize the swarm
 keywords: tutorial, cluster management, swarm mode
 title: Create a swarm
+notoc: true
 ---
 
 After you complete the [tutorial setup](index.md) steps, you're ready

engine/swarm/swarm-tutorial/delete-service.md

@@ -2,6 +2,7 @@
 description: Remove the service from the swarm
 keywords: tutorial, cluster management, swarm, service
 title: Delete the service running on the swarm
+notoc: true
 ---
 
 The remaining steps in the tutorial don't use the `helloworld` service, so now

engine/swarm/swarm-tutorial/deploy-service.md

@@ -2,6 +2,7 @@
 description: Deploy a service to the swarm
 keywords: tutorial, cluster management, swarm mode
 title: Deploy a service to the swarm
+notoc: true
 ---
 
 After you [create a swarm](create-swarm.md), you can deploy a service to the

engine/swarm/swarm-tutorial/drain-node.md

@@ -2,6 +2,7 @@
 description: Drain nodes on the swarm
 keywords: tutorial, cluster management, swarm, service, drain
 title: Drain a node on the swarm
+notoc: true
 ---
 
 In earlier steps of the tutorial, all the nodes have been running with `ACTIVE`
@@ -121,3 +122,7 @@ drained node to an active state:
     * during a rolling update
     * when you set another node to `Drain` availability
     * when a task fails on another active node
+
+## What's next?
+
+Learn how to [use a swarm mode routing mesh](/engine/swarm/ingress.md).

engine/swarm/swarm-tutorial/index.md

@@ -2,6 +2,7 @@
 description: Getting Started tutorial for Docker Engine swarm mode
 keywords: tutorial, cluster management, swarm mode
 title: Getting started with swarm mode
+toc_max: 4
 ---
 
 This tutorial introduces you to the features of Docker Engine Swarm mode. You

engine/swarm/swarm-tutorial/inspect-service.md

@@ -2,6 +2,7 @@
 description: Inspect the application
 keywords: tutorial, cluster management, swarm mode
 title: Inspect a service on the swarm
+notoc: true
 ---
 
 When you have [deployed a service](deploy-service.md) to your swarm, you can use

engine/swarm/swarm-tutorial/rolling-update.md

@@ -2,6 +2,7 @@
 description: Apply rolling updates to a service on the swarm
 keywords: tutorial, cluster management, swarm, service, rolling-update
 title: Apply rolling updates to a service
+notoc: true
 ---
 
 In a previous step of the tutorial, you [scaled](scale-service.md) the number of
@@ -145,4 +146,6 @@ desired state:
     `redis:3.0.6` while others are running `redis:3.0.7`. The output above shows
     the state once the rolling updates are done.
 
+## What's next?
+
 Next, learn about how to [drain a node](drain-node.md) in the swarm.

engine/swarm/swarm-tutorial/scale-service.md

@@ -2,6 +2,7 @@
 description: Scale the service running in the swarm
 keywords: tutorial, cluster management, swarm mode, scale
 title: Scale the service in the swarm
+notoc: true
 ---
 
 Once you have [deployed a service](deploy-service.md) to a swarm, you are ready