Federation discovery of PID/(Q)EAA issuers

[peppelinux]

from Roland

In https://italia.github.io/eudi-wallet-it-docs/versione-corrente/en/pid-eaa-issuance.html HIgh-level PID flow.

The document says: "the Wallet Instance queries the Trust Anchor to fetch the trusted PID Provider." I guess it should say "... the identifier for the trusted PID Provider."

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I agree that the discovery process should be described better, assuming also that there may be multiple (Q)EAA issuers registered with TA's Intermediates

[peppelinux]

A non normative example of subordinate listing (http request) is then required