Mentioning Redis 8 instead of Redis Stack

Author: ViktarStarastsenka

src/ds/json/intro.md

@@ -10,8 +10,8 @@ Primary features include:
 
 ### Prerequisites
 
-[Redis Stack](https://redis.io/downloads/?utm_source=redisinsight&utm_medium=app&utm_campaign=json_tutorial) >=7.2.0-v7 \
+[Redis 8](https://hub.docker.com/layers/library/redis/8.0.3/images/sha256-426e6823fb1778e8c49f327f9e5af00e505a7fca726ffe11b7930eb1d99ef5fd) or higher \
 OR \
 [RedisJSON](https://github.com/RedisJSON/RedisJSON/) >=2.6.8 \
 OR \
-A free Redis Stack instance on [Redis Cloud](https://redis.io/try-free/?utm_source=redisinsight&utm_medium=app&utm_campaign=json_tutorial).
+A free Redis instance on [Redis Cloud](https://redis.io/try-free/?utm_source=redisinsight&utm_medium=app&utm_campaign=timeseries_tutorial).