[CM-1244] Dependencies section added to read me.

Author: devkaranCT

README.md

@@ -138,6 +138,11 @@ sheet.appearance.elevation = Elevation(
 present(sheet, animated: true)
 ```
 
+Dependencies
+----------
+
+Y—BottomSheet depends upon our [Y—CoreUI](https://github.com/yml-org/ycoreui) and [Y—MatterType](https://github.com/yml-org/ymattertype) frameworks (both also open source and Apache 2.0 licensed).
+
 Installation
 ----------