Bind space-doc-mode to `SPC m v` in Org

Provide a way to toggle space-doc-mode in any org file with a keybinding.
Useful for reading documents in the same mode as Spacemacs documentation is
opened in.

layers/+emacs/org/README.org

@@ -309,6 +309,7 @@ To permanently enable mode line display of org clock, add this snippet to your
 | ~SPC m C-S-j~                                | org-shiftcontroldown                         |
 | ~SPC m C-S-k~                                | org-shiftcontrolup                           |
 | ~SPC s j~                                    | spacemacs/jump-in-buffer (jump to a heading) |
+| ~SPC v~                                      | space-doc-mode (toggle a read-only view mode)|
 
 *** Tables
 

layers/+emacs/org/funcs.el

@@ -9,6 +9,9 @@
 ;;
 ;;; License: GPLv3
 
+;; Autoload space-doc-mode
+(autoload 'space-doc-mode "space-doc" nil 'interactive)
+
 (defun org-projectile/capture (&optional arg)
   (interactive "P")
   (if arg

layers/+emacs/org/packages.el

@@ -254,6 +254,7 @@ Will work on both org-mode and any mode that accepts plain html."
         "q" 'org-clock-cancel
         "R" 'org-refile
         "s" 'org-schedule
+        "v" 'space-doc-mode
 
         ;; insertion of common elements
         "ia" 'org-attach