Update README.md

Update READM.md

README.md

@@ -10,11 +10,17 @@ REST API simulating a digital wallet.
   - [Spring Web](https://spring.io/guides/gs/serving-web-content/)
   - [Spring Dev Tools](https://docs.spring.io/spring-boot/docs/1.5.16.RELEASE/reference/html/using-boot-devtools.html)
   - [Spring Validation](https://www.baeldung.com/spring-boot-bean-validation)
+  - Spring Boot
 * [ModelMapper](http://modelmapper.org/)
 * [Project Lombok](https://projectlombok.org/)
 * Java 11
 * JPA/[Hibernate](https://hibernate.org/orm/)
 * [Flyway](https://flywaydb.org/documentation/)
+* [JUnit](https://junit.org/junit5/docs/current/user-guide/)
+* [AssertJ](https://assertj.github.io/doc/)
+* Datasources
+    - [MySql](https://www.mysql.com/)
+    - [H2 Database Engine](https://www.h2database.com/html/cheatSheet.html)
 
 # API Test
 * [Postman](https://www.postman.com/)