Update MariaDB upgrade instructions in FAQ

Clarified the initial version of MariaDB in the FAQ.

Author: arhimede

docs/book/v2/faq.md

@@ -169,7 +169,7 @@ sudo dnf upgrade -y
 
 ## How do I upgrade MariaDB ?
 
-By default, MariaDB is at version 11.4 LTS.
+Initially, MariaDB was at version 11.4 LTS.
 In case you want to upgrade to a different version, for instance [11.8 LTS](https://mariadb.org/11-8-is-lts/), use the below steps:
 
 * Open the MariaDB.repo file in any text editor.