add wechaty kotlin badge

Author: huan

README.md

@@ -6,6 +6,7 @@
 ![Java Wechaty](https://wechaty.github.io/java-wechaty/images/java-wechaty.png)
 
 [![Java Wechaty Getting Started](https://img.shields.io/badge/Java%20Wechaty-Getting%20Started-orange)](https://github.com/wechaty/java-wechaty-getting-started)
+[![Wechaty in Kotlin](https://img.shields.io/badge/Wechaty-Kotlin-orange)](https://github.com/wechaty/java-wechaty)
 
 ## Connecting Chatbots
 
@@ -298,6 +299,15 @@ We decided to use Kotlin to develop the Java Wechaty!
 - [Java Wechaty](https://github.com/wechaty/java-wechaty) - Java WeChaty Conversational AI Chatbot SDK for Wechat Individual Accounts (Java)
 - [Scala Wechaty](https://github.com/wechaty/scala-wechaty) - Scala WeChaty Conversational AI Chatbot SDK for WechatyIndividual Accounts (Scala)
 
+
+## Badge
+
+[![Wechaty in Kotlin](https://img.shields.io/badge/Wechaty-Kotlin-orange)](https://github.com/wechaty/java-wechaty)
+
+```md
+[![Wechaty in Kotlin](https://img.shields.io/badge/Wechaty-Kotlin-orange)](https://github.com/wechaty/java-wechaty)
+```
+
 ## Committers
 
 - [@redmaple1](https://github.com/redmaple1) Xiaoya Ren