update the Roadmap

Author: yacir

README.md

@@ -65,6 +65,8 @@ github 'yacir/YBSlantedCollectionViewLayout'
 - [x] Improve the attribution of the clic
 - [x] Carthage support
 - [x] Tests
+- [ ] Swift 3 support
+- [ ] Swift Package Manager support
 
 ## Author