Update how-to-set-up-appliance-vmware.md

Fixed spelling error on line 36
soverign -> sovereign

Author: reigntastic

articles/migrate/vmware/how-to-set-up-appliance-vmware.md

@@ -33,7 +33,7 @@ After you create the appliance, check if the appliance can connect to Azure Migr
 To set up the appliance by using an OVA template, you'll complete these steps, which are described in detail in this section:
 
 > [!NOTE]
-> OVA templates are not available for soverign clouds.
+> OVA templates are not available for sovereign clouds.
 
 > [!NOTE]
 > Do not clone or create a VM template out of an appliance deployed using OVA template. This scenario is unsupported and may result in deployment failures within the Migrate Service.