This package provide functions for Emacs with which you can
find description of function or variable from  Emacs-Lisp
Reference Manual. If you put (require 'elisp-info-setup)
in ~/.emacs then following key binds are provided.

C-h f (C-h d) : elisp-info-describe-function
C-h D         : describe-function
C-h v         : elisp-info-describe-variable
C-h V         : describe-variable