Added Line for What's New

dist/what's new.md

@@ -61,6 +61,7 @@
 - Supports clip planes with shadows ([sebavan](http://www.github.com/sebavan))
 - Added Workbench color scheme for VSCode ([drigax](https://github.com/drigax) & [Patrick Ryan](https://github.com/PatrickRyanMS))
 - Playground switch buttons are more intuitive ([#7601](https://github.com/BabylonJS/Babylon.js/issues/7601)) ([RaananW](https://github.com/RaananW/))
+- Added Initial Code for Device Input System([PolygonalSun](https://github.com/PolygonalSun))
 
 ### Engine