Discovery - 2.1 Identifier Normalization - last para says "host" portion. Should be authority component

[Nat Sakimura]

Currently:

{{{ URLs without a "host" portion are not supported by this specification. }}}

Proposal:

{{{ URLs without an authority component are not supported by this specification. }}}

Rationale: "authority component" is the right word in RFC 3986.

[Nat Sakimura]

Fixed #652 #625 - Discovery Identifier normalization

→ 25c8f6dd5c8c