diff --git a/README.md b/README.md
index 5f9dda2..1ead68a 100644
--- a/README.md
+++ b/README.md
@@ -274,6 +274,8 @@ Available options:
 
 #### Converting between files and tokens
 
+Both commands work as plain stdin-to-stdout filters:
+
 ```
 Usage: werge break