fix spelling of spelling :)

Author: ArieHein

articles/synapse-analytics/backuprestore/restore-sql-pool.md

@@ -138,7 +138,7 @@ Steps:
 
 1. Update Az.Sql Module to 3.8.0 (or greater) if on an older version using `Update-Module`. Otherwise it will cause failures. To validate your version via PowerShell:
    ```powershell
-   foreach ($i in (get-module -ListAvailable | ?{$_.name -eq 'az.sql'}).Version) { $version = [string]$i.Major + "." + [string]$i.Minor; if ($version -gt 3.7) {write-host "Az.Sql version $version installed. Perquisite met."} else {update-module az.sql} }
+   foreach ($i in (get-module -ListAvailable | ?{$_.name -eq 'az.sql'}).Version) { $version = [string]$i.Major + "." + [string]$i.Minor; if ($version -gt 3.7) {write-host "Az.Sql version $version installed. Prerequisite met."} else {update-module az.sql} }
    ```
 
 1. Connect to your Azure account and list all the subscriptions associated with your account.