From b83228fa3e7b079a09afd7e4306cd08d23e010da Mon Sep 17 00:00:00 2001
From: Dimitri Fontaine <dim@tapoueh.org>
Date: Mon, 9 Sep 2013 22:32:29 +0200
Subject: [PATCH] Small documentation enhancement.

---
 lib/abnf/README.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/abnf/README.md b/lib/abnf/README.md
index b5151ee..0be3624 100644
--- a/lib/abnf/README.md
+++ b/lib/abnf/README.md
@@ -134,6 +134,9 @@ Here's the RFC syntax:
 
 ### Core rules
 
+Those parts of the grammar are always provided, they are the *defaults*
+rules of the ABNF definition.
+
         ALPHA          =  %x41-5A / %x61-7A   ; A-Z / a-z
 
         BIT            =  "0" / "1"