From 35b958f4ad1d5f5ff898441095462c5e1b319a06 Mon Sep 17 00:00:00 2001
From: Bjarte Johansen <bjarte.johansen@gmail.com>
Date: Sat, 30 May 2015 16:38:07 +0200
Subject: [PATCH] Add comment about the use of :goal

---
 ob-prolog.el | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/ob-prolog.el b/ob-prolog.el
index df1eb93..1b4d01b 100644
--- a/ob-prolog.el
+++ b/ob-prolog.el
@@ -35,8 +35,14 @@
 ;;    'org-babel-load-languages
 ;;    '((prolog . t)))
 ;;
-;; The add to load-path is unnecessary if you install using the
-;; package manager.
+;; It is unnecessary to add the directory to the load path if you
+;; install using the package manager.
+;;
+;; In addition to the normal header arguments ob-prolog also supports
+;; the :goal argument. :goal is the goal that prolog will run when
+;; executing the source block. Prolog needs a goal to know what it is
+;; going to execute.
+;;
 
 ;;; Code:
 (require 'ob)