small syntax page update

darcs-hash:20050204214227-9977f-29c980beb137f19411b5221c7addba3b524ebd5a.gz

data/wiki/syntax.txt

@@ -111,7 +111,7 @@ You can use up to five different levels of headlines to structure your content.
   === Headline Level 4 ===
   == Headline Level 5 ==
 
-By using four dashes, you can make a horizontal line:
+By using four or more dashes, you can make a horizontal line:
 
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