Update hello minikube page

Author: RA489

content/en/docs/tutorials/hello-minikube.md

@@ -46,7 +46,7 @@ This tutorial provides a container image that uses NGINX to echo back all the re
     {{< kat-button >}}
 
 {{< note >}}
-If you installed minikube locally, run `minikube start`.
+If you installed minikube locally, run `minikube start`. Before you run `minikube dashboard`, you should open a new terminal, start `minikube dashboard` there, and then switch back to the main terminal.
 {{< /note >}}
 
 2. Open the Kubernetes dashboard in a browser: