Enable cleaner org-habits

It is a small change in code but a big change in your interaction with
your habits (periodic TODO lists)

- Neatly log your TODO state changes into a drawer (default LOGBOOK)
- Enable org-habits to show a consistency graph of your habits

Reference:
- https://orgmode.org/manual/Tracking-TODO-state-changes.html
- https://orgmode.org/manual/Tracking-your-habits.html

CHANGELOG.md

@@ -4,6 +4,9 @@
 
 ### New features
 
+* Enable org-habits
+* Neatly track TODO state changes in a drawer (LOGBOOK) thereby
+  improving readability
 * Add a module to enable Literate Programming
 * Add a Racket module.
 * Add a Lua module.

modules/prelude-org.el

@@ -31,6 +31,7 @@
 ;;; Code:
 
 (require 'org)
+(require 'org-habit)
 
 (add-to-list 'auto-mode-alist '("\\.org\\'" . org-mode))
 
@@ -40,6 +41,7 @@
 (global-set-key "\C-cb" 'org-switchb)
 
 (setq org-log-done t)
+(setq org-log-into-drawer t)
 
 (defun prelude-org-mode-defaults ()
   (let ((oldmap (cdr (assoc 'prelude-mode minor-mode-map-alist)))