Update wav2sketch link

gui/index.html

@@ -1022,7 +1022,7 @@ span.mainfunction {color: #993300; font-weight: bolder}
 	<div class=tooltipinfo>
 	<p>Play a short sound clip, stored directly in memory.
 		Data files are created with the
-		<a href="https://github.com/PaulStoffregen/Audio/tree/master/examples/SamplePlayer/wav2sketch" target="_blank">wav2sketch program</a>,
+		<a href="https://github.com/PaulStoffregen/Audio/tree/master/extras/wav2sketch" target="_blank">wav2sketch program</a>,
 		and copied to the sketch folder to become part of your sketch.</p>
 	</div>
 	<h3>Audio Connections</h3>