Improve LDAP article

[iansk]

Improve LDAP config article:

https://docs.paloaltonetworks.com/prisma/prisma-cloud/20-04/prisma-cloud-compute-edition-admin/access_control/integrate_active_directory

Provide more direction on this page that informs customers on what AD groups will work for that given field. Essentially, if an AD Group for Twistlock users were created as Domain Local in X Domain then the path has to point to that Domain Local group. If the Group was created on the Global Catelog then the LDAP configuration can point to any DC in that forest for that Domain Group would replicate throughout.