Fix for apple silicon scripts

[krajtar]

Right now the readme.md and 04-script (that contains the same commands from readme.md) that installs Kubeadm is wrong. The repository address is wrong, the version is wrong and the flags are wrong. Here is a fixed file for anyone that is trying to deploy on a Apple Silicon (tested on M2) :
`#!/usr/bin/env bash

Step 4 - Install kubeadm, kubelet and kubectl

KUBE_VERSION=1.26.4

sudo apt-get update
sudo apt-get install -y apt-transport-https ca-certificates curl

curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.26/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg

echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.26/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list
sudo apt-get update
sudo apt-get install -y kubelet=${KUBE_VERSION}-1.1 jq kubectl=${KUBE_VERSION}-1.1 kubeadm=${KUBE_VERSION}-1.1 runc kubernetes-cni=1.2.0-2.1 --allow-change-held-packages
sudo apt-mark hold kubelet kubeadm kubectl`