Merge pull request #16 from cheese10yun/guide-api-call

README 수정

README.md

@@ -20,7 +20,7 @@ $ java -jar -Dspring.profiles.active=local api-service/target/api-service-0.0.1-
 1. [Test 전략 가이드](https://github.com/cheese10yun/spring-guide/blob/master/docs/test-guide.md)
 2. [Exception 전략 가이드](https://github.com/cheese10yun/spring-guide/blob/master/docs/exception-guide.md)
 3. [Domain 객체 가이드](https://github.com/cheese10yun/spring-guide/blob/master/docs/domain-guide.md)
-4. [외부 API 가이드 예정](https://github.com/cheese10yun/spring-guide/blob/master/docs/api-call-guide.md)
+4. [외부 API 가이드](https://github.com/cheese10yun/spring-guide/blob/master/docs/api-call-guide.md)
 5. [Service 적절한 크기 가이드 작업중...]()