Update index.md

Author: paigehargrave

engine/swarm/swarm-tutorial/index.md

@@ -56,7 +56,7 @@ follows:
 
 * [install Docker Engine on Linux machines](#install-docker-engine-on-linux-machines)
 
-* [use Docker for Mac or Docker for Windows](#use-docker-for-mac-or-docker-for-windows)
+* [use Docker Desktop for Mac or Docker Desktop for Windows](#use-docker-for-mac-or-docker-for-windows)
 
 #### Install Docker Engine on Linux machines
 
@@ -66,29 +66,29 @@ instructions](../../installation/index.md) for your platform. Spin up the three
 machines, and you are ready. You can test both
 single-node and multi-node swarm scenarios on Linux machines.
 
-#### Use Docker for Mac or Docker for Windows
+#### Use Docker Desktop for Mac or Docker Desktop for Windows
 
-Alternatively, install the latest [Docker for Mac](/docker-for-mac/index.md) or
-[Docker for Windows](/docker-for-windows/index.md) application on one
+Alternatively, install the latest [Docker Desktop for Mac](/docker-for-mac/index.md) or
+[Docker Desktop for Windows](/docker-for-windows/index.md) application on one
 computer. You can test both single-node and multi-node swarm from this computer,
 but you need to use Docker Machine to test the multi-node scenarios.
 
-* You can use Docker for Mac or Windows to test _single-node_ features of swarm
+* You can use Docker Desktop for Mac or Windows to test _single-node_ features of swarm
 mode, including initializing a swarm with a single node, creating services,
 and scaling services. Docker "Moby" on Hyperkit (Mac) or Hyper-V (Windows)
 serve as the single swarm node.
 
 <p />
 
-* Currently, you cannot use Docker for Mac or Docker for Windows alone to test a
+* Currently, you cannot use Docker Desktop for Mac or Docker Desktop for Windows alone to test a
 _multi-node_ swarm. However, you can use the included version of [Docker
 Machine](/machine/overview.md) to create the swarm nodes (see
 [Get started with Docker Machine and a local VM](/machine/get-started.md)), then
 follow the tutorial for all multi-node features. For this scenario, you run
-commands from a Docker for Mac or Docker for Windows host, but that Docker host itself is
+commands from a Docker for Mac or Docker Desktop for Windows host, but that Docker host itself is
 _not_ participating in the swarm. After you create the nodes, you can run all
 swarm commands as shown from the Mac terminal or Windows PowerShell with
-Docker for Mac or Docker for Windows running.
+Docker for Mac or Docker Desktop for Windows running.
 
 ### The IP address of the manager machine