Fix markup error

SimonSapin · web-flow · commit e0007268af66 · 2017-02-10T10:15:45.000+01:00
diff --git a/css-syntax/Overview.bs b/css-syntax/Overview.bs
@@ -2443,6 +2443,7 @@ Consume a simple block</h4>
 			Return the block.
 
 		<dt><<EOF-token>>
+		<dd>
 			This is a <a>parse error</a>.
 			Return the block.
 
