diff --git a/README.md b/README.md
index 4249d25..0877e70 100644
--- a/README.md
+++ b/README.md
@@ -3,11 +3,14 @@ Generate a key, self-signed certificate, and certificate request.
 
 Usage: csrgen [fqdn]
 
-Example: python csrgen test.test.com
-
+```
+python csrgen test.test.com
+```
 When more than one hostname is provided, a SAN (Subject Alternate Name)
 certificate and request are generated.  This can be acheived by adding -s.
 
 Usage: csrgen <hostname> -s <san0> <san1>
 
-Example: python csrgen test.test.com -s mushu.test.com pushu.test.com
+```
+python csrgen test.test.com -s mushu.test.com pushu.test.com
+```