fix typo

gui/index.html

@@ -444,7 +444,7 @@ span.mainfunction {color: #993300; font-weight: bolder}
 	</p>
 	<p>I2S master objects can be used together with non-I2S input and output
 		objects, for simultaneous audio streaming on different hardware.</p>
-</script><
+</script>
 <script type="text/x-red" data-template-name="AudioInputI2S">
 	<div class="form-row">
 		<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>