chore: imported knowledge from the private kb

knowledge base/kubernetes/k3s.md

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+# K3S
+
+Lightweight Kubernetes distribution built for IoT and Edge computing.
+
+## Table of contents <!-- omit in toc -->
+
+1. [TL:DR](#tldr)
+1. [Further readings](#further-readings)
+1. [Sources](#sources)
+
+## TL:DR
+
+## Further readings
+
+- [Website]
+- [Documentation]
+- [Kubernetes]
+
+## Sources
+
+All the references in the [further readings] section, plus the following:
+
+- The [Build your very own self-hosting platform with Raspberry Pi and Kubernetes] series of articles
+- [Run Kubernetes on a Raspberry Pi with k3s]
+
+<!-- project's references -->
+[documentation]: https://docs.k3s.io/
+[website]: https://k3s.io/
+
+<!-- internal references -->
+[further readings]: #further-readings
+[kubernetes]: README.md
+
+<!-- external references -->
+[build your very own self-hosting platform with raspberry pi and kubernetes]: https://kauri.io/build-your-very-own-self-hosting-platform-with-raspberry-pi-and-kubernetes/5e1c3fdc1add0d0001dff534/c
+[run kubernetes on a raspberry pi with k3s]: https://opensource.com/article/20/3/kubernetes-raspberry-pi-k3s