update what's new

dist/preview release/what's new.md

@@ -18,7 +18,7 @@
 - GUI:
   - Added new [ImageBasedSlider](http://doc.babylonjs.com/how_to/gui#imagebasedslider) to let users customize sliders using images ([Deltakosh](https://github.com/deltakosh))
   - Added support for clipboard events to let users perform `cut`, `copy` and `paste` events ([Saket Saurabh](https://github.com/ssaket))
-  - Added new ScrollText for long text descriptions read in parts using a Slider ([JohnK](https://github.com/BabylonJSGuide/))
+  - Added new ScrollViewer for larger containers to be viewed using Sliders ([JohnK](https://github.com/BabylonJSGuide/))
 
 ## Updates