diff --git a/docs/USAGE b/docs/USAGE
index 1b533ce..c11397b 100644
--- a/docs/USAGE
+++ b/docs/USAGE
@@ -146,6 +146,8 @@ By default, the layout is a page named "layout.html", in the views directory.
 It contains the HTML page with some special parts : the tokens. Tokens are
 written like {content} or {title}. The renderer replace them by the result of
 replacement attibute.
+It is also possible to define some variable and pass them to the view. The view
+will treat them as it want and modify the displayed content as needed.
 
 8. Debug
 --------