Update README.md

Author: andresWeitzel

README.md

@@ -7,3 +7,5 @@ Config open-api y Swagger: https://www.baeldung.com/spring-rest-openapi-document
 Tutorial doc swagger : https://www.youtube.com/watch?v=WIvZVv2chXM
 
 doc oficial swagger anotations : https://docs.swagger.io/swagger-core/current/apidocs/
+
+ej anotation : https://github.com/ekim197711/springboot-swagger/blob/master/src/main/java/com/codeinvestigator/demoswaggerui/space/SpaceCraftController.java