--- a/RelaxNG/publiquiz.rnc	mar. janv. 24 11:48:53 2012 +0100
+++ b/RelaxNG/publiquiz.rnc	mar. janv. 24 19:45:41 2012 +0100
@@ -184,7 +184,7 @@
 commentary = element commentary { commentary.content }
 
 commentary.content =
-   (section* | block*),
+   (section+ | block+)?,
    link*