Clarify that the purpose of creating trust frameworks is to manage the risk of sharing information

[MartinFSmith]

Specifically, in the Introduction, as reads:

" the internet presents its own particular challenges, not the least of which is being able to identify with whom they are interacting. "

Suggest alternatively:

" the internet presents its own particular challenges, not the least of which is being able to manage the risks associated with accepting credentials of users not vetted and managed directly by the relying-party organization. "