Fix typo

docs/api/helpers/SpotLightHelper.html

@@ -62,7 +62,7 @@
 		<h2>Methods</h2>
 		<div>See the base [page:Object3D] class for common methods.</div>
 
-		<h3>[method:null update]()</h3>
+		<h3>[method:null dispose]()</h3>
 		<div>Disposes of the light helper.</div>
 
 		<h3>[method:null update]()</h3>