chore: update readme and package with new nip

Author: antonleviathan

README.md

@@ -60,6 +60,7 @@ NIPs with a relay-specific implementation are listed here.
 - [x] NIP-28: Public Chat
 - [x] NIP-33: Parameterized Replaceable Events
 - [x] NIP-40: Expiration Timestamp
+- [x] NIP-42: Authentication of clients to relays
 - [x] NIP-111: Relay Information Document Extensions
 
 ## Requirements

package.json

@@ -17,6 +17,7 @@
     28,
     33,
     40,
+    42,
     111
   ],
   "main": "src/index.ts",