LdapDirectoryIdentifier - Improve explanation

The explanantion for [LdapDirectoryIdentifier](https://github.com/dotnet/dotnet-api-docs/blob/main/xml/System.DirectoryServices.Protocols/LdapDirectoryIdentifier.xml) is currently this

> The `System.DirectoryServices.Protocols.LdapDirectoryIdentifier` class creates a directory identifier for one or more LDAP servers.

But this is not really helpfull. It is like saying

> a saw is a saw

For someone who does not know what a saw is this is of no use. But saying something like

> A saw is a tool consisting of a tough blade, wire or chain with a hard toothed edge. It is used to cut through material
> very often wood though sometimes metal or stone.

would be helpfull.

It would be great if the explanantion of a LdapDirectoryIdentifier describes what it is and what it is needed for and how it can be used?

Thanks