diff --git a/README.md b/README.md
index 24fa5a2..16ee2ae 100644
--- a/README.md
+++ b/README.md
@@ -49,7 +49,7 @@ Patching is hard. I still cannot rhyme.
 ```
 
 Let's use the `words` lexer, which marks everything whitespace-ish as
-whitespace, and groups of non-whitespace:
+whitespace, and picks up groups of non-whitespace "content" characters:
 ```
 :[^ \t\n]*
 _:[ \t\n]*