minimize diff

Author: catalin-enache

manual/en/cleanup.html

@@ -428,7 +428,6 @@ <h1>Cleanup</h1>
 references to all the resources loaded. At least at the moment,
 three.js doesn't give us any more info when loading a scene so this
 solution seems to work.</p>
-
 <p>I hope you find this example useful or at least a good reference for what is
 required to free resources in three.js</p>