Merge pull request #5559 from wayou/patch-1

possible duplicate?

docs/api/extras/helpers/AxisHelper.html

@@ -26,7 +26,7 @@
 
 		<h3>[name]([page:Number size])</h3>
 		<div>
-		size -- Define the size of the of the line representing the axes.
+		size -- Define the size of the line representing the axes.
 		</div>
 		<div>
 		Creates an axisHelper with lines of length size.