Fix Kotlin example for filtering handler functions

Closes gh-#27337

src/docs/asciidoc/web/webmvc-functional.adoc

@@ -799,10 +799,10 @@ For instance, consider the following example:
 				ServerRequest.from(it)
 						.header("X-RequestHeader", "Value").build()
 			}
-			POST("/person", handler::createPerson)
-			after { _, response -> // <2>
-				logResponse(response)
-			}
+		}
+		POST("/person", handler::createPerson)
+		after { _, response -> // <2>
+			logResponse(response)
 		}
 	}
 ----