Adding Links to docs

Author: mrm9084

articles/azure-app-configuration/TOC.yml

@@ -207,6 +207,8 @@
           href: /dotnet/api/microsoft.featuremanagement
         - name: .NET built-in feature filters
           href: /dotnet/api/microsoft.featuremanagement.featurefilters
+        - name: Java Spring
+          href: https://azure.github.io/azure-sdk-for-java/springboot.html
     - name: Control plane
       items:
         - name: REST API

articles/azure-app-configuration/index.yml

@@ -152,6 +152,8 @@ landingContent:
           url: /dotnet/api/microsoft.featuremanagement
         - text: .NET Core filter library
           url: /dotnet/api/microsoft.featuremanagement.featurefilters
+        - text: Java Spring Library
+          url: https://azure.github.io/azure-sdk-for-java/springboot.html
 
   - title: Configuration SDKs and samples
     linkLists: