updating whats new

dist/preview release/what's new.md

@@ -53,7 +53,7 @@
 ### GUIEditor
 
 - Added GUI Editor project to master. ([msDestiny14](https://github.com/msDestiny14))
-- Moving GUI property tab components into GUIEditor: Slider. ([msDestiny14](https://github.com/msDestiny14))
+- Moving GUI property tab components into GUIEditor. ([msDestiny14](https://github.com/msDestiny14))
 
 ### GUI