The <repositories /> element triggers the setup
    of the Spring Data repository infrastructure. The most important attribute
    is base-package which defines the package to scan for Spring
    Data repository interfaces.[3]
Table A.1. Attributes
| Name | Description | 
|---|---|
| base-package | Defines the package to be used to be scanned for repository
            interfaces extending *Repository(actual interface is determined by specific Spring Data module) in
            auto detection mode. All packages below the configured package
            will be scanned, too. Wildcards are allowed. | 
| repository-impl-postfix | Defines the postfix to autodetect custom repository
            implementations. Classes whose names end with the configured
            postfix will be considered as candidates. Defaults to Impl. | 
| query-lookup-strategy | Determines the strategy to be used to create finder
            queries. See the section called “Query lookup strategies” for
            details. Defaults to create-if-not-found. |