Add more references to README.md

README.md

@@ -16,14 +16,16 @@
 - ~~[ ] Spring HATEOAS~~ Deprecated
 - [x] Combinator Validation
 - [x] Spring Boot Test Starter (Mockito + AssertJ)
-- [ ] GitHub Actions CI Pipeline
+- [x] GitHub Actions CI Pipeline
 
 ## References
 
 - [Java Versions and Features](https://www.marcobehler.com/guides/a-guide-to-java-versions-and-features)
 - [Building REST services with Spring](https://spring.io/guides/tutorials/rest/)
 - [Cross Site Request Forgery (CSRF)](https://docs.spring.io/spring-security/reference/servlet/exploits/csrf.html#servlet-csrf-configure-disable)
 - [Unit Testing with Spring Boot](https://reflectoring.io/unit-testing-spring-boot/)
+- [Setup Postgres in GitHub Actions](https://remarkablemark.org/blog/2021/03/14/setup-postgresql-in-github-actions/)
+- [Adding workflow status badge](https://docs.github.com/en/actions/monitoring-and-troubleshooting-workflows/adding-a-workflow-status-badge)
 - [Learn Spring Boot 3](https://youtu.be/-mwpoE0x0JQ)
 - [Java Functional Programming](https://youtu.be/VRpHdSFWGPs)
 
@@ -75,7 +77,7 @@ mvn spring-boot:run
 
 ### Common
 
-- Run unit test with `mvn test`, or more specifically:
+- Run unit test with `mvn test`, or more specifically `ClassName#methodName`:
 
 ```bash
 mvn test -Dtest=ControllerTest#allPlayers test