Move task states topic to Engine (docker#4961)

Author: Jim Galasyn

_data/toc.yaml

@@ -396,6 +396,8 @@ guides:
           title: How services work
         - path: /engine/swarm/how-swarm-mode-works/pki/
           title: Manage swarm security with PKI
+        - path: /engine/swarm/how-swarm-mode-works/swarm-task-states/
+          title: Swarm task states
       - path: /engine/swarm/swarm-mode/
         title: Run Docker in swarm mode
       - path: /engine/swarm/join-nodes/
@@ -1468,8 +1470,6 @@ manuals:
           title: Troubleshoot with logs
         - path: /datacenter/ucp/2.2/guides/admin/monitor-and-troubleshoot/troubleshoot-configurations/
           title: Troubleshoot configurations
-        - path: /datacenter/ucp/2.2/guides/admin/monitor-and-troubleshoot/troubleshoot-task-state/
-          title: Troubleshoot swarm task states
       - path: /datacenter/ucp/2.2/guides/admin/backups-and-disaster-recovery/
         title: Backups and disaster recovery
       - sectiontitle: CLI reference

datacenter/ucp/2.2/guides/admin/monitor-and-troubleshoot/troubleshoot-task-state.md renamed to engine/swarm/how-swarm-mode-works/swarm-task-states.md

@@ -1,14 +1,16 @@
 ---
-title: Troubleshoot swarm task states
-description: Learn how to troubleshoot tasks that are scheduled on your swarm.
-keywords: ucp, troubleshoot, swarm, task, service
+title: Swarm task states
+description: Learn about tasks that are scheduled on your swarm.
+keywords: swarm, task, service
+redirect_from:
+- /datacenter/ucp/guides/admin/monitor-and-troubleshoot/troubleshoot-task-state/
 ---
 
-Docker Universal Control Plane lets you create services, which can start tasks.
+Docker lets you create services, which can start tasks.
 A service is a description of a desired state, and a task does the work.
 Work is scheduled on swarm nodes in this sequence:
 
-1. Create a service by using the UCP web UI or CLI.
+1. Create a service by using `docker service create` or the UCP web UI or CLI.
 2. The request goes to a Docker manager node.
 2. The Docker manager node schedules the service to run on particular nodes. 
 3. Each service can start multiple tasks.