Fix outdated sagan description. Reformat. Fixes gh-4029.

docs/src/main/asciidoc/sagan-index.adoc

@@ -10,13 +10,12 @@ Spring Cloud Netflix features:
 ## Getting Started
 
 As long as Spring Cloud Netflix and Eureka Core are on the
-classpath any Spring Boot application with `@EnableEurekaClient` will try to contact a Eureka
+classpath any Spring Boot application with `spring-cloud-starter-netflix-eureka-client` in dependencies will try to contact a Eureka
 server on `http://localhost:8761` (the default value of
 `eureka.client.serviceUrl.defaultZone`):
 
 ```java
 @SpringBootApplication
-@EnableEurekaClient
 @RestController
 public class Application {
 

spring-cloud-netflix-eureka-client/src/test/java/org/springframework/cloud/netflix/eureka/config/EurekaConfigServerBootstrapConfigurationTests.java

@@ -73,8 +73,8 @@ public class EurekaConfigServerBootstrapConfigurationTests {
 		new ApplicationContextRunner()
 				.withConfiguration(AutoConfigurations.of(EurekaConfigServerBootstrapConfiguration.class))
 				.withPropertyValues("spring.cloud.config.discovery.enabled=true").run(context -> {
-			assertEurekaBeansPresent(context);
-		});
+					assertEurekaBeansPresent(context);
+				});
 	}
 
 	@Test