Polish "Getting Started" in ref doc

Issue gh-669

Author: jgrandja

docs/src/docs/asciidoc/getting-started.adoc

@@ -52,7 +52,7 @@ This is a minimal configuration for getting started quickly. To understand what
 <1> A Spring Security filter chain for the xref:protocol-endpoints.adoc[Protocol Endpoints].
 <2> A Spring Security filter chain for https://docs.spring.io/spring-security/reference/servlet/authentication/index.html[authentication].
 <3> An instance of {spring-security-api-base-url}/org/springframework/security/core/userdetails/UserDetailsService.html[`UserDetailsService`] for retrieving users to authenticate.
-<4> An instance of xref:core-components.adoc#registered-client-repository[`RegisteredClientRepository`] for managing clients.
+<4> An instance of xref:core-model-components.adoc#registered-client-repository[`RegisteredClientRepository`] for managing clients.
 <5> An instance of `com.nimbusds.jose.jwk.source.JWKSource` for signing access tokens.
 <6> An instance of `java.security.KeyPair` with keys generated on startup used to create the `JWKSource` above.
-<7> An instance of `ProviderSettings` to configure Spring Authorization Server.
+<7> An instance of xref:configuration-model#configuring-provider-settings[`ProviderSettings`] to configure Spring Authorization Server.