docs: Reference new Killercoda course (argoproj#9910)

Signed-off-by: Tim Collins <[email protected]>

Author: tico24

.spelling

@@ -62,6 +62,7 @@ JetBrains
 KNative
 Katacoda
 Kerberos
+Killercoda
 KubectlExec
 Kubeflow
 Kustomize

docs/quick-start.md

@@ -9,6 +9,8 @@ Before you start you need a Kubernetes cluster and `kubectl` set up to be able t
 * [k3s](https://k3s.io/) or [k3d](https://k3d.io/)
 * [Docker Desktop](https://www.docker.com/products/docker-desktop/)
 
+Alternatively, if you want to try out Argo Workflows and don't want to set up a Kubernetes cluster, try the [Killercoda course](training.md#hands-on).
+
 ⚠️ These instructions are intended to help you get started quickly. They are not suitable in production. For production installs, please refer to [the installation documentation](installation.md) ⚠️
 
 ## Install Argo Workflows

docs/training.md

@@ -6,6 +6,10 @@ We also have a YouTube playlist of videos that includes workshops you can follow
 
 [![Videos Screenshot](assets/videos.png) Open the playlist](https://youtube.com/playlist?list=PLGHfqDpnXFXLHfeapfvtt9URtUF1geuBo)
 
+## Hands-On
+
+We've created [a Killercoda course featuring beginner and intermediate lessons](https://killercoda.com/pipekit/course/argo-workflows/). These allow to you try out Argo Workflows in your web browser without needing to install anything on your computer. Each lesson starts up a Kubernetes cluster that you can access via a web browser.
+
 ## Additional resources
 
 Visit the [awesome-argo GitHub repo](https://github.com/terrytangyuan/awesome-argo) for more educational resources.