From f2aa5c02352308a24d784e1abac08015e0f3e6b3 Mon Sep 17 00:00:00 2001
From: neilpang <neil@neilpang.com>
Date: Sun, 18 Mar 2018 11:18:37 +0800
Subject: [PATCH] update doc

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 2898629c..8a12d9fe 100644
--- a/README.md
+++ b/README.md
@@ -400,7 +400,7 @@ Valid values are:
 It's simple, just give a wildcard domain as the `-d` parameter.
 
 ```sh
-acme.sh  --issue -d example.com  -d *.example.com  --dns dns_cf
+acme.sh  --issue -d example.com  -d '*.example.com'  --dns dns_cf
 ```