docker-for-windows: use "console" for shell examples

This allows for easier copying of the commands, without selecting the
prompt.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

docker-for-windows/index.md

@@ -226,7 +226,7 @@ Run `docker version` to verify whether you have enabled experimental features. E
 is listed under `Server` data. If `Experimental` is `true`, then Docker is
 running in experimental mode, as shown here:
 
-```shell
+```console
 > docker version
 
 Client: Docker Engine - Community

docker-for-windows/networking.md

@@ -105,13 +105,13 @@ overlay network, not a bridge network, as these are not routed.
 The command to run the `nginx` webserver shown in [Getting Started](index.md#explore-the-application)
 is an example of this.
 
-```bash
+```console
 $ docker run -d -p 80:80 --name webserver nginx
 ```
 
 To clarify the syntax, the following two commands both publish container's port `80` to host's port `8000`:
 
-```bash
+```console
 $ docker run --publish 8000:80 --name webserver nginx
 
 $ docker run -p 8000:80 --name webserver nginx
@@ -121,7 +121,7 @@ To publish all ports, use the `-P` flag. For example, the following command
 starts a container (in detached mode) and the `-P` flag publishes all exposed ports of the
 container to random ports on the host.
 
-```bash
+```console
 $ docker run -d -P --name webserver nginx
 ```