Update WebServerInitEvent docs to reflect ordering w.r.t. refresh

Closes gh-22277

spring-boot-project/spring-boot-docs/src/docs/asciidoc/spring-boot-features.adoc

@@ -319,9 +319,9 @@ Application events are sent in the following order, as your application runs:
 The above list only includes ``SpringApplicationEvent``s that are tied to a `SpringApplication`.
 In addition to these, the following events are also published after `ApplicationPreparedEvent` and before `ApplicationStartedEvent`:
 
-. A `ContextRefreshedEvent` is sent when an `ApplicationContext` is refreshed.
-. A `WebServerInitializedEvent` is sent after the `WebServer` is ready.
+- A `WebServerInitializedEvent` is sent after the `WebServer` is ready.
   `ServletWebServerInitializedEvent` and `ReactiveWebServerInitializedEvent` are the servlet and reactive variants respectively.
+- A `ContextRefreshedEvent` is sent when an `ApplicationContext` is refreshed.
 
 TIP: You often need not use application events, but it can be handy to know that they exist.
 Internally, Spring Boot uses events to handle a variety of tasks.

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/context/WebServerInitializedEvent.java

 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,8 +20,8 @@ import org.springframework.boot.web.server.WebServer;
 import org.springframework.context.ApplicationEvent;
 
 /**
- * Event to be published after the application context is refreshed and the
- * {@link WebServer} is ready. Useful for obtaining the local port of a running server.
+ * Event to be published when the {@link WebServer} is ready. Useful for obtaining the
+ * local port of a running server.
  *
  * @author Brian Clozel
  * @author Stephane Nicoll

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/reactive/context/ReactiveWebServerInitializedEvent.java

 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,9 +20,8 @@ import org.springframework.boot.web.context.WebServerInitializedEvent;
 import org.springframework.boot.web.server.WebServer;
 
 /**
- * Event to be published after the {@link ReactiveWebServerApplicationContext} is
- * refreshed and the {@link WebServer} is ready. Useful for obtaining the local port of a
- * running server.
+ * Event to be published after the {@link WebServer} is ready. Useful for obtaining the
+ * local port of a running server.
  *
  * @author Brian Clozel
  * @author Stephane Nicoll

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/web/servlet/context/ServletWebServerInitializedEvent.java

 /*
- * Copyright 2012-2019 the original author or authors.
+ * Copyright 2012-2020 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,9 +20,8 @@ import org.springframework.boot.web.context.WebServerInitializedEvent;
 import org.springframework.boot.web.server.WebServer;
 
 /**
- * Event to be published after the {@link ServletWebServerApplicationContext} is refreshed
- * and the {@link WebServer} is ready. Useful for obtaining the local port of a running
- * server.
+ * Event to be published after the {@link WebServer} is ready. Useful for obtaining the
+ * local port of a running server.
  *
  * <p>
  * Normally it will have been started, but listeners are free to inspect the server and