reformat a bunch of json things and small nitpicks.

42.md

@@ -24,13 +24,13 @@ A relay may want to require clients to authenticate to access restricted resourc
 This NIP defines a new message, `AUTH`, which relays can send when they support authentication and clients can send to relays when they want
 to authenticate. When sent by relays, the message is of the following form:
 
-```
+```json
 ["AUTH", <challenge-string>]
 ```
 
 And, when sent by clients, of the following form:
 
-```
+```json
 ["AUTH", <signed-event-json>]
 ```
 
@@ -41,16 +41,12 @@ Relays MUST exclude `kind: 22242` events from being broadcasted to any client.
 
 ```json
 {
-  "id": "...",
-  "pubkey": "...",
-  "created_at": 1669695536,
   "kind": 22242,
   "tags": [
     ["relay", "wss://relay.example.com/"],
     ["challenge", "challengestringhere"]
   ],
-  "content": "",
-  "sig": "..."
+  ...
 }
 ```
 
@@ -67,13 +63,13 @@ is expected to last for the duration of the WebSocket connection.
 Upon receiving a message from an unauthenticated user it can't fulfill without authentication, a relay may choose to notify the client. For
 that it can use a `NOTICE` or `OK` message with a standard prefix `"restricted: "` that is readable both by humans and machines, for example:
 
-```
+```json
 ["NOTICE", "restricted: we can't serve DMs to unauthenticated users, does your client implement NIP-42?"]
 ```
 
 or it can return an `OK` message noting the reason an event was not written using the same prefix:
 
-```
+```json
 ["OK", <event-id>, false, "restricted: we do not accept events from unauthenticated users, please sign up at https://example.com/"]
 ```