Add Maven central link to the Spring Monitor readme (Azure#36974)

Author: jeanbisutti

sdk/spring/spring-cloud-azure-starter-monitor/README.md

@@ -4,7 +4,7 @@ This Spring Boot starter provides telemetry data to Azure Monitor for Spring Boo
 
 For a Spring Boot application running on a JVM (not with a GraalVM native image), we recommend using the [Application Insights Java agent][application_insights_java_agent_spring_boot].
 
-[Source code][source_code] | (Package yet to release) | [API reference documentation][api_reference_doc] | [Product Documentation][product_documentation]
+[Source code][source_code] | [Package (Maven)][package_mvn] | [API reference documentation][api_reference_doc] | [Product Documentation][product_documentation]
 
 ## Getting started
 
@@ -250,7 +250,7 @@ This project has adopted the [Microsoft Open Source Code of Conduct][coc]. For m
 
 <!-- LINKS -->
 [source_code]: https://github.com/Azure/azure-sdk-for-java/tree/main/sdk/spring/spring-cloud-azure-starter-monitor/src
-<!-- [package_mvn]: https://central.sonatype.com/artifact/com.azure.spring/spring-cloud-azure-starter-monitor -->
+[package_mvn]: https://central.sonatype.com/artifact/com.azure.spring/spring-cloud-azure-starter-monitor
 [api_reference_doc]: https://docs.microsoft.com/azure/azure-monitor/overview
 [product_documentation]: https://docs.microsoft.com/azure/azure-monitor/overview
 [azure_subscription]: https://azure.microsoft.com/free/