Add highlights for azure spring boot August release (#1708)

releases/2020-08/index.md

@@ -11,6 +11,11 @@ sidebar: releases_sidebar
 * Azure Cognitive Search SDK for .NET added `FieldBuilder` to help easily build a search index from a model type.
 * Added ObjectSerializer and JsonSerializer APIs to support pluggable serialization within SDKs.
 * Added support for Key Vault service version 7.1 for Keys, Secrets, and Certificates
+* Java Spring Updates
+   - Service Bus JMS starter update underpinning SDK to [Java Message Service (JMS) 2.0 preview for Azure Service Bus premium tier](https://azure.microsoft.com/blog/announcing-preview-of-java-message-service-2-over-amqp-on-azure-service-bus/), which enables more lift and shift scenarios and significantly increased JMS API compatibility.
+   - [New features](https://github.com/Azure/azure-sdk-for-java/blob/master/sdk/spring/azure-spring-boot-starter-keyvault-secrets/README.md) added to Java Spring Boot starter of Key Vault to support case sensitive keys, connect to multiple Key Vaults from a single app, Spring Boot Actuator and performance improvements when keys are refreshed.
+   - Upgraded underpinning Java Key Vault SDK for Azure Spring starter libraries for better performance, consistency, and compatibility.
+   - Azure Spring Boot updated to Spring Boot 2.3.2, which addresses many bug fixes and cleans up all warnings at build time.
 
 ## Release notes