Fix typo in AudioEffectFade help

gui/list.html

@@ -841,7 +841,7 @@
 		directly to the output) after "milliseconds" time.
 	</p>
 	<p class=func><span class=keyword>fadeOut</span>(milliseconds);</p>
-	<p class=desc>Begin increasing the audio level, to reach 0 (no output)
+	<p class=desc>Begin decreasing the audio level, to reach 0 (no output)
 		after "milliseconds" time.
 	</p>
 	<h3>Notes</h3>