Update link to unattended documentation

quickget

@@ -1190,10 +1190,9 @@ function unattended_windows() {
 <unattend xmlns="urn:schemas-microsoft-com:unattend"
   xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-
   <!--
        For documentation on components:
-       http://technet.microsoft.com/en-us/library/ff699038.aspx
+       https://docs.microsoft.com/en-us/windows-hardware/customize/desktop/unattend/
   -->
 
   <settings pass="generalize">