Looks like a nice guide! I do have to ask why anyone would use Space and Shift+Space to page up and page down when there's already dedicated PgUp and PgDn keys... usually even on laptops...
Actually, i know quite a few laptops in which the page up/down keys are accessed through fn+up/down.
Also, even on my laptop, i use the j/k keys to go uo/down, because those are the ones used by Vim
and are closer to the middle of the keyboard