Simple nostr relay written in node.js

• NIP-01: Basic protocol flow description
• NIP-02: Contact List and Petnames
• NIP-03: OpenTimestamps Attestations for Events
• NIP-04: Encrypted Direct Message
• NIP-09: Event Deletion
• NIP-10: Conventions for clients' use of e and p tags in text events.
• NIP-11: Relay Information Document
• NIP-12: Generic Tag Queries
• NIP-13: Proof of Work
• NIP-14: Subject tag in text events.
• NIP-15: End of Stored Events Notice
• NIP-16: Event Treatment
• NIP-19: bech32-encoded entities
• NIP-20: Command Results
• NIP-21: nostr: URL scheme
• NIP-22: Event created_at Limits
• NIP-25: Reactions
• NIP-26: Delegated Event Signing
• NIP-28: Public Chat
• NIP-33: Parameterized Replaceable Events
• NIP-36: Sensitive Content
• NIP-40: Expiration Timestamp
• NIP-42: Authentication of clients to relays
• NIP-50: Keywords filter