add closing dashes for tab group

Author: GitHubber17

articles/service-fabric/service-fabric-quickstart-java-spring-boot.md

@@ -20,6 +20,8 @@ In this quickstart, you deploy a Java Spring Boot application to Azure Service F
 - [Service Fabric SDK & Service Fabric Command Line Interface (CLI)](https://docs.microsoft.com/azure/service-fabric/service-fabric-get-started-linux#installation-methods)
 - [Git](https://git-scm.com/downloads)
 
+---
+
 #### [MacOS](#tab/macos)
 
 - [Java environment and Yeoman](https://docs.microsoft.com/azure/service-fabric/service-fabric-get-started-mac#create-your-application-on-your-mac-by-using-yeoman)