Polish

See gh-10595

spring-boot-project/spring-boot-docs/src/main/asciidoc/appendix-application-properties.adoc

@@ -84,6 +84,7 @@ content into your application. Rather, pick only the properties that you need.
 	spring.cache.type= # Cache type. By default, auto-detected according to the environment.
 
 	# SPRING CONFIG - using environment property only ({sc-spring-boot}/context/config/ConfigFileApplicationListener.{sc-ext}[ConfigFileApplicationListener])
+	spring.config.additional-location= # Config file locations used in addition to the defaults.
 	spring.config.location= # Config file locations.
 	spring.config.name=application # Config file name.