Update storage-engine.md (#2087)

* Update storage-engine.md

* Update content/operate/rs/databases/auto-tiering/storage-engine.md

Co-authored-by: Rachel Elledge <[email protected]>

---------

Co-authored-by: Rachel Elledge <[email protected]>

Author: AlonMagrafta

content/operate/rs/databases/auto-tiering/storage-engine.md

@@ -14,8 +14,9 @@ weight: 100
 
 Redis Enterprise Auto Tiering supports two storage engines:
 
-* [Speedb](https://www.speedb.io/) (default, recommended)
-* [RocksDB](https://rocksdb.org/)
+- Speedb: Redis proprietary storage engine. The default and recommended storage engine as of Redis Enterprise Software version 7.2.4.
+
+- [RocksDB](https://rocksdb.org/): Used up to Redis version 6.2. Deprecated for later Redis versions.
 
 {{<warning>}}Switching between storage engines requires guidance by Redis Support or your Account Manager.{{</warning>}}