diff --git a/README.md b/README.md
index 842ca83..ac68002 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@
 
 ## destination files:
 
+```
 certs/
     example.com/
         cert.pem
@@ -21,4 +22,5 @@ certs_flat/
     example.com.chain.pem
     sub.example.nl.crt
     sub.example.nl.key
-    sub.example.nl.chain.pem
\ No newline at end of file
+    sub.example.nl.chain.pem
+```
\ No newline at end of file