This is a great tutorial by a great Dota 2 streamer, Merlini. He is popular for teaching pro strategies and item/skill builds during his streams.
He has started making tutorials for new players, and here he has one that covers launch options (Steam), console & game settings, hotkeys, camera, shift-queuing, in game-time.
[Tutorial] First tutorial: Console & game settings, hotkeys, camera, shift-queuing, game-time - YouTube
