Merge b7535ed096 into e942427f8f

For use with a nostr mesh network https://github.com/lnbits/nostrmesh/tree/main, but prob useful elsewhere

121.md

@@ -0,0 +1,19 @@
+NIP-121
+======
+
+Unicast event `"tags": "r"`
+-------------------------------
+
+`draft` `mandatory` `author:benarc` 
+
+`route` list of relays as a new tag `"r"`, to help create a unicast route for an events.
+
+```json
+{
+  "tags": [
+    ["r", "<csv of relay IDs>"]
+  ]
+}
+```
+
+A client receives an event with tag `"r"`, if the client received the event from a relay in the list and it has a connection with the next relay in the list, the client will pass the event to that relay.