Update faq.md

Author: arhimede

docs/book/v2/faq.md

@@ -173,7 +173,7 @@ By default, MariaDB is 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.
- 
+
 ```shell
 sudo nano /etc/yum.repos.d/MariaDB.repo
 ```