Getting OpenWRT on it

[stephan-ack]

Hello, just to inform - if you want to include it in your guide.

Getting OpenWRT on the router:
openwrt/openwrt@c5b7ec8

Getting it to boot OpenWRT automatically:
https://gist.github.com/StephanAAU/a4909caacf97c128c69fbd73244ba2ae