Remove extra /api path segement in reference documentation.

Closes spring-projects#2998

Author: RajAnthari

src/main/antora/modules/ROOT/pages/repositories/core-concepts.adoc

@@ -4,7 +4,7 @@
 The central interface in the Spring Data repository abstraction is `Repository`.
 It takes the domain class to manage as well as the identifier type of the domain class as type arguments.
 This interface acts primarily as a marker interface to capture the types to work with and to help you to discover interfaces that extend this one.
-The {spring-data-commons-javadoc-base}/org/springframework/data/repository/CrudRepository.html[`CrudRepository`] and {spring-data-commons-javadoc-base}/api/org/springframework/data/repository/ListCrudRepository.html[`ListCrudRepository`] interfaces provide sophisticated CRUD functionality for the entity class that is being managed.
+The {spring-data-commons-javadoc-base}/org/springframework/data/repository/CrudRepository.html[`CrudRepository`] and {spring-data-commons-javadoc-base}/org/springframework/data/repository/ListCrudRepository.html[`ListCrudRepository`] interfaces provide sophisticated CRUD functionality for the entity class that is being managed.
 
 [[repositories.repository]]
 .`CrudRepository` Interface