chore: mention kvrocks

Author: vmihailenco

README.md

@@ -25,6 +25,9 @@
 - [Redis Cache](https://github.com/go-redis/cache)
 - [Rate limiting](https://github.com/go-redis/redis_rate)
 
+This client also works with [kvrocks](https://github.com/KvrocksLabs/kvrocks), a distributed key
+value NoSQL database that uses RocksDB as storage engine and is compatible with Redis protocol.
+
 ## Features
 
 - Redis 3 commands except QUIT, MONITOR, and SYNC.