Enable zen module for markdown and org

+org.el

@@ -1,7 +1,7 @@
 ;;; ~/.doom.d/+org.el -*- lexical-binding: t; -*-
 ;; Org mode configuration
 ;;
-;; Change  TODO keywords
+;; Change TODO keywords
 (setq org-todo-keywords '((sequence "TODO" "NEXT" "WAITING" "INACTIVE" "|" "DONE" "CANCELLED")))
 ;; Rice elements
 (setq org-todo-keyword-faces '(("INACTIVE" . "grey") ("NEXT" . "turquoise") ("WAITING" . warning))
@@ -38,3 +38,5 @@
 ;; Print babel results to the buffer
 (setq org-babel-default-header-args '((:session . "none") (:results . "output") (:exports . "code")
                                       (:cache . "no") (:noweb . "no") (:hlines . "no") (:tangle . "no")))
+;; Enter writeroom-mode in all org files
+(add-hook 'org-mode-hook 'global-writeroom-mode)