Update docs/api/core/Clock.html

Correcting typoon line 44: "btween" --> "between"

docs/api/core/Clock.html

@@ -41,7 +41,7 @@
 
 		<h3>.[page:Float elapsedTime]</h3>
 		<div>
-		When the clock is running, It holds the time elapsed btween the start of the clock to the previous update.<br />
+		When the clock is running, It holds the time elapsed between the start of the clock to the previous update.<br />
 		This counted from the number of milliseconds elapsed since 1 January 1970 00:00:00 UTC.
  		</div>