Update README.md

README.md

@@ -16,6 +16,7 @@ JDK compatibility:  1.8 - 18, Android
 * Redis with Master with Slave only  
 * Redis single (including support of [Azure Redis Cache](https://azure.microsoft.com/en-us/services/cache/) and [Google Cloud Memorystore for Redis](https://cloud.google.com/memorystore/docs/redis/))  
 * Thread-safe implementation  
+* [JSON datatype](https://github.com/redisson/redisson/wiki/6.-distributed-objects/#615-json-object-holder)
 * [Reactive Streams](https://github.com/redisson/redisson/wiki/3.-operations-execution#32-reactive-way) API  
 * [RxJava3](https://github.com/redisson/redisson/wiki/3.-operations-execution#32-reactive-way) API  
 * [Asynchronous](https://github.com/redisson/redisson/wiki/3.-operations-execution#31-async-way) API