Add vi keybindings to Documentation view
@pksadiq
Submitted by Mohammed Sadiq Link to original bug (#771146)
Description
It would be nice to add vi keybinding feature to documentation view too.
Along with, It shall be nice to let 'q' close the documentation window, 'b' to go back to previous page (allowed after clicking some link in documentation), and some way to click links using keyboard.
Thanks.