[PATCH] doc: Fix "could could" typo in Submitting Patches section

[Maxim Cournoyer]

Hi Guix!

Please receive this trivial patch (attached) for the Guix info manual.

>From 805165a6114f745a2e9713215f9935ff78437c49 Mon Sep 17 00:00:00 2001
From: Maxim Cournoyer <address@hidden>
Date: Wed, 14 Dec 2016 09:30:17 -0800
Subject: [PATCH] doc: Fix "could could" typo in Submitting Patches section

* doc/contributing.texi (Submitting Patches): s/could could/could /
---
 doc/contributing.texi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/contributing.texi b/doc/contributing.texi
index 18d891db4..de08f9b35 100644
--- a/doc/contributing.texi
+++ b/doc/contributing.texi
@@ -368,4 +368,4 @@ a subject.  You may use your email client or the 
@command{git
 send-email} command.  We prefer to get patches in plain text messages,
 either inline or as MIME attachments.  You are advised to pay attention if
 your email client changes anything like line breaks or indentation which
-could could potentially break the patches.
+could potentially break the patches.
-- 
2.11.0

Maxim