Correct cross-reference in reference documentation

See gh-24033

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

@@ -1830,7 +1830,7 @@ If you used `@Value("{demo.itemPrice}")` instead, `demo.item-price` and `DEMO_IT
 If you define a set of configuration keys for your own components, we recommend you group them in a POJO annotated with `@ConfigurationProperties`.
 Doing so will provide you with structured, type-safe object that you can inject into your own beans.
 
-While you can write a `SpEL` expression in `@Value`, such expressions are not processed from <<boot-features-external-config-application-property-files,application property files>>.
+While you can write a `SpEL` expression in `@Value`, such expressions are not processed from <<boot-features-external-config-files,application property files>>.