desktop: 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>

desktop/faqs.md

@@ -38,8 +38,8 @@ variables, specify these to connect to Docker instances through Unix sockets.
 
 For example:
 
-```bash
-export DOCKER_HOST=unix:///var/run/docker.sock
+```console
+$ export DOCKER_HOST=unix:///var/run/docker.sock
 ```
 
 Docker Desktop Windows users can connect to the Docker Engine through a **named pipe**: `npipe:////./pipe/docker_engine`, or **TCP socket** at this URL:

desktop/kubernetes.md

@@ -21,7 +21,7 @@ The Kubernetes client command `kubectl` is included and configured to connect
 to the local Kubernetes server. If you have already installed `kubectl` and
 pointing to some other environment, such as `minikube` or a GKE cluster, ensure you change the context so that `kubectl` is pointing to `docker-desktop`:
 
-```bash
+```console
 $ kubectl config get-contexts
 $ kubectl config use-context docker-desktop
 ```
@@ -62,8 +62,8 @@ the `PATH`.
 
 You can test the command by listing the available nodes:
 
-```bash
-kubectl get nodes
+```console
+$ kubectl get nodes
 
 NAME                 STATUS    ROLES     AGE       VERSION
 docker-desktop       Ready     master    3h        v1.19.7