feat: Add Minikube install docs

Signed-off-by: Anders F Björklund <anders.f.bjorklund@gmail.com>

website/docs/kubernetes/minikube/index.md

@@ -9,3 +9,11 @@ tags: [migrating-to-kubernetes, minikube]
 # Running Kubernetes on your workstation with Minikube and Podman
 
 Podman Desktop can help you run [Minikube-powered](https://minikube.sigs.k8s.io/) local Kubernetes clusters on a container engine, such as Podman.
+
+#### Procedure
+
+1. Go to **<icon icon="fa-solid fa-cog" size="lg" /> Settings > Extensions**.
+1. Install the _Minikube_ extension:
+    1. Go to **Install a new extension from OCI Image**
+    1. Enter the **Name of the Image**: `ghcr.io/containers/podman-desktop-extension-minikube`
+    1. Click **<icon icon="fa-solid fa-download" size="lg" /> Install extension from the OCI image**