Remove k3d context command

Fixes: #198 - thanks @TheApeMachine

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <[email protected]>

Author: alexellis

lab1b.md

@@ -42,14 +42,14 @@ You can follow the labs whilst using Kubernetes, but you may need to make some s
 
 #### *k3s using k3d*
 
-If you have Docker on your computer, then you can use `k3d` from Rancher Labs. It installs a lightweight version of Kubernetes called `k3s` and runs it within a Docker container, meaning it will work on any computer that has Docker.
+If you have Docker on your computer, then you can use the `k3d` tool, hosted by Rancher Labs. It installs a lightweight version of Kubernetes called `k3s` and runs it within a Docker container, meaning it will work on any computer that has Docker.
 
 * [Install k3d](https://github.com/rancher/k3d)
 
 * Start a cluster
 
 1. `k3d cluster create CLUSTER_NAME` to create a new single-node cluster (= 1 container running k3s + 1 loadbalancer container)
-2. `k3d kubeconfig merge CLUSTER_NAME --switch-context` to update your default kubeconfig and switch the current-context to the new one
+2. The context for kubectl will be updated automatically, you can check this with `kubectl config get-contexts`
 3. execute some commands like `kubectl get pods --all-namespaces`
 If you want to delete default cluster `k3d cluster delete CLUSTER_NAME`