Typo in `Creating a Kubernetes Cluster on Bare-metal` KubeOne doc

[Archisman-Mridha]

Just noticed a small typo in the Creating a Kubernetes Cluster on Bare-metal KubeOne doc :

docs/content/kubeone/main/tutorials/creating-clusters-baremetal/_index.en.md

Line 138 in 5d2af0b

* You need **even** number of instances with a minimum of **three** instances

.

It should be odd instead of even 👀

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