Update versions in changelog

Author: erwstout

CHANGELOG.md

@@ -21,5 +21,6 @@ code is included
 - This CHANGELOG
 - production build
 
+[0.3.0]: https://github.com/factor1/react-card-flipper/compare/v0.2.0...v0.3.0
 [0.2.0]: https://github.com/factor1/react-card-flipper/compare/v0.1.1...v0.2.0
 [0.1.1]: https://github.com/factor1/react-card-flipper/compare/v0.1.0...v0.1.1