Hello!
In the documentation you recommend to use bower for installation, but I would suggest to use npm or even better yarn instead. I think there is no use for different package managers in the future and npm ecosystem is great and yarn really add missing features to npm and makes it really fast. I'm using yarn for all my current projects and I think it's time to deprecate bower. Also, manual installation option shouldn't be really mentioned, cause it's a counterproductive practice.