License for proprietary software based on Play2

I`d like to develop proprietary software for our client. Follow site information - Play Framework is released under the Apache 2 License. But when I create starting project via sbt new playframework/play-scala-seed.g8
there is no license.txt or notice or readme in project directory. Should I add license.txt, as Apache License recommends or something else? Any thoughts are welcome, thank you!