Update badges

Author: kpavlov

README.md

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 # MCP Kotlin SDK
 
-[![Maven Central](https://img.shields.io/maven-central/v/io.modelcontextprotocol/kotlin-sdk.svg?label=Maven%20Central)](https://repo1.maven.org/maven2/io/modelcontextprotocol/kotlin-sdk/)
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+[![Maven Central](https://img.shields.io/maven-central/v/io.modelcontextprotocol/kotlin-sdk.svg?label=Maven%20Central)](https://central.sonatype.com/artifact/io.modelcontextprotocol/kotlin-sdk)
+[![Build](https://github.com/modelcontextprotocol/kotlin-sdk/actions/workflows/build.yml/badge.svg?branch=main)](https://github.com/modelcontextprotocol/kotlin-sdk/actions/workflows/build.yml)
 [![Kotlin](https://img.shields.io/badge/kotlin-2.2+-blueviolet.svg?logo=kotlin)](http://kotlinlang.org)
-[![Kotlin Multiplatform](https://img.shields.io/badge/Kotlin-Multiplatform-blueviolet?logo=kotlin)](https://kotlinlang.org/docs/multiplatform.html)
+[![Kotlin Multiplatform](https://img.shields.io/badge/Platforms-%20JVM%20%7C%20Wasm%2FJS%20%7C%20Native%20-blueviolet?logo=kotlin)](https://kotlinlang.org/docs/multiplatform.html)
 [![JVM](https://img.shields.io/badge/JVM-1.8+-red.svg?logo=jvm)](http://java.com)
-[![Platforms](https://img.shields.io/badge/Platforms-JVM%20%7C%20Wasm%2FJS%20%7C%20Native%20(iOS%2FiOS%20Simulator)-blue)](https://kotlinlang.org/docs/multiplatform.html)
 [![License](https://img.shields.io/badge/License-MIT-yellow.svg)](LICENSE)
 
 Kotlin Multiplatform implementation of the [Model Context Protocol](https://modelcontextprotocol.io) (MCP),