@Configuration
@EnableSwagger2

Agregamos los métodos dentro de la clase: public class SwaggerConfig

@Bean
public Docket apiDocket() {
        return new Docket(DocumentationType.SWAGGER_2)
                .select()
                .apis(RequestHandlerSelectors.basePackage("com.softpang.apiAvikarMantenimiento.Controlador"))
                .paths(PathSelectors.any())
                .build()
                .apiInfo(getApiInfo())
                ;
    }
private ApiInfo getApiInfo() {
        return new ApiInfo(
                "API Description",
                "API Description",
                "1.0",
                "https://irvinpanta.softpang.com/terms",
                new Contact(
                        "Irvin Panta",
                        "https://irvinpanta.softpang.com",
                        "irvinpanta96@gmail.com"),
                "LICENSE",
                "LICENSE URL",
                Collections.emptyList()
        );
}

Ingresamos a http://localhost:8080/swagger-ui.html para ver la documentación

Dependencias necesarias.
<!-- https://mvnrepository.com/artifact/io.springfox/springfox-swagger-ui -->
<!-- https://mvnrepository.com/artifact/io.springfox/springfox-swagger2 -->