Update README links

README.md

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 # Vonage Server SDK for Kotlin (JVM)
 
-[![Maven Release](https://maven-badges.herokuapp.com/maven-central/com.vonage/kotlin-server-sdk/badge.svg)](https://maven-badges.herokuapp.com/maven-central/com.vonage/server-sdk)
-[![Build Status](https://github.com/Vonage/vonage-java-sdk/actions/workflows/build.yml/badge.svg)](https://github.com/Vonage/vonage-java-sdk/actions/workflows/build.yml?query=workflow%3A"Build+Java+CI")
+[![Maven Release](https://maven-badges.herokuapp.com/maven-central/com.vonage/kotlin-server-sdk/badge.svg)](https://maven-badges.herokuapp.com/maven-central/com.vonage/kotlin-server-sdk)
+[![Build Status](https://github.com/Vonage/vonage-kotlin-sdk/actions/workflows/build.yml/badge.svg)](https://github.com/Vonage/vonage-kotlin-sdk/actions/workflows/build.yml)
 [![Contributor Covenant](https://img.shields.io/badge/Contributor%20Covenant-v2.0%20adopted-ff69b4.svg)](CODE_OF_CONDUCT.md)
+[![Snyk](https://snyk.io/test/github/vonage/vonage-java-sdk/badge.svg)](https://snyk.io/test/github/vonage/vonage-java-sdk)
 [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](LICENSE.txt)
 
 This SDK provides syntactic sugar for the [Vonage Java Server SDK](https://github.com/Vonage/vonage-java-sdk)
 to improve the user experience in Kotlin. It is therefore subject to the same requirements and capabilities.
 
+You'll need to have [created a Vonage account](https://dashboard.nexmo.com/sign-up?utm_source=DEV_REL&utm_medium=github&utm_campaign=java-client-library).
+
+