update doc

7 years ago · f2aa5c0235
1 changed files with 1 additions and 1 deletions
--- 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
 ```