Update New-AzVMConfig.md (#15376)

Missing new line

Author: sakamoto-poteko

src/Compute/Compute/help/New-AzVMConfig.md

@@ -170,6 +170,7 @@ Specifies a license type, which indicates that the image or disk for the virtual
 Possible values for Windows Server are:
 - Windows_Client
 - Windows_Server
+
 Possible values for Linux Server operating system are:
 - RHEL_BYOS (for RHEL)
 - SLES_BYOS (for SUSE)