Update README.md

Author: gkorland

README.md

@@ -2,6 +2,7 @@
 [![CircleCI](https://circleci.com/gh/RedisAI/JRedisAI/tree/master.svg?style=svg)](https://circleci.com/gh/RedisAI/JRedisAI/tree/master)
 [![GitHub issues](https://img.shields.io/github/release/RedisAI/JRedisAI.svg)](https://github.com/RedisAI/JRedisAI/releases/latest)
 [![Maven Central](https://maven-badges.herokuapp.com/maven-central/com.redislabs/jredisai/badge.svg)](https://maven-badges.herokuapp.com/maven-central/com.redislabs/jredisai)
+[![Javadocs](https://www.javadoc.io/badge/com.redislabs/jredisai.svg)](https://www.javadoc.io/doc/com.redislabs/jredisai)
 [![Codecov](https://codecov.io/gh/RedisAI/JRedisAI/branch/master/graph/badge.svg)](https://codecov.io/gh/RedisAI/JRedisAI)
 
 # JRedisAI