Move docker to preferred getting started method
Move docker to preferred getting started method

sitespeedio/sitespeed.io,beenanner/sitespeed.io,JeroenVdb/sitespeed.io,JeroenVdb/sitespeed.io,sitespeedio/sitespeed.io,beenanner/sitespeed.io,JeroenVdb/sitespeed.io,sitespeedio/sitespeed.io,sitespeedio/sitespeed.io,beenanner/sitespeed.io