Fix use of deprecated property in docs

Closes gh-12940

spring-boot-project/spring-boot-docs/src/main/asciidoc/howto.adoc

@@ -276,12 +276,12 @@ configuration by setting properties in `+spring.main.*+`. For example, in
 
 [source,properties,indent=0,subs="verbatim,quotes,attributes"]
 ----
-	spring.main.web-environment=false
+	spring.main.web-application-type=none
 	spring.main.banner-mode=off
 ----
 
-Then the Spring Boot banner is not printed on startup, and the application is
+Then the Spring Boot banner is not printed on startup, and the application is not starting
-not a web application.
+an embedded web server.
 
 NOTE: The preceding example also demonstrates how flexible binding allows the use of
 underscores (`_`) as well as dashes (`-`) in property names.