Pull request created for nostr-protocol/nips: #529
NIP-57: Minor Fixes
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- Replaced `zap note` with `zap receipt`
- Fixed inconsistent quoting of `zap request` & `zap receipt` (quoted all occurrences of them)
- Fixed description about the `nostr` query parameter in the Appendix D
- "the contents of the event" will be misread as "the `content` field of the event", though the `nostr` query param includes the whole event.