* Remove black line
* Test menu
* Test menu
* remove teble title
* Update guide doc
* Add paging help info
* Add pic for unite mapping
* Add help mappings doc
* Add SPC h I: report issue of SpaceVim
* Add SPC h SPC for unite SpaceVim help
* Add doc for get root prefix
* Fix error of guide
* Fix SPC h k mappings
* Add denite group to mapping root
* Add SPC h m mappings
