diff --git a/Options-and-Params.md b/Options-and-Params.md
index 7cb84ef..55e9929 100644
--- a/Options-and-Params.md
+++ b/Options-and-Params.md
@@ -1,3 +1,4 @@
+```
 Usage: acme.sh  command ...[parameters]....
 Commands:
   --help, -h               Show this help message.
@@ -108,3 +109,4 @@ Parameters:
                                      1: Cert mode. Send a message for every single cert.
   --notify-hook   [hookname]        Set the notify hook
 
+```
\ No newline at end of file