Update customer-permissions.md

Fixing link by adding a leading /

Author: saudmish

windows-365/enterprise/customer-permissions.md

@@ -39,7 +39,7 @@ Windows 365 uses the Azure role-based access control (RBAC) permissions required
 
 ## Create Azure network connections
 
-You create ANCs to define the connection between your network and the Windows 365 system so that Cloud PCs can be successfully provisioned. When you create an ANC, the Windows 365 [service principal](azure/active-directory/fundamentals/service-accounts-introduction-azure.md#service-principals) requires the following permissions:
+You create ANCs to define the connection between your network and the Windows 365 system so that Cloud PCs can be successfully provisioned. When you create an ANC, the Windows 365 [service principal](/azure/active-directory/fundamentals/service-accounts-introduction-azure.md#service-principals) requires the following permissions:
 
 - **Reader permission on the Azure subscription**: This permission is used to simplify the flow when adding a custom image.
 - **Network contributor on the specified resource group**: This permission is used to create network interface cards in the selected resource group.