Fix license in README

README.md

 
 This project is an example application for a typical [Ionic](https://ionicframework.com/) app with a [Spring Boot](https://projects.spring.io/spring-boot/) backend.
 
-You can read about how this application was created in [this tutorial](./TUTORIAL.md). Feel free to copy any code in this project for your own use in accordance with the [MIT license](LICENSE).
+You can read about how this application was created in [this tutorial](./TUTORIAL.md). Feel free to copy any code in this project for your own use in accordance with the [Apache license](LICENSE).
 
-**Prerequisites**: Java 8, Node.js, and Maven.
+**Prerequisites**: Java 8 and Node.js.
 
 To run the Spring Boot backend, cd into `server` and run `mvn spring-boot:run`.