Fix missing closing tag in Curve.html

docs/api/extras/core/Curve.html

@@ -17,7 +17,7 @@
 
 		<h2>Examples</h2>
 
-		<h3>[example:webgl_geometry_extrude_splines geometry / extrude / splines ]
+		<h3>[example:webgl_geometry_extrude_splines geometry / extrude / splines ]</h3>
 
 		<h2>Constructor</h2>