add and remove permissions actions.

29.md

@@ -62,6 +62,8 @@ The list of capabilities, as defined by this NIP, for now, is the following:
 - `edit-metadata`
 - `delete-message`
 - `ban-user`
+- `add-permission`
+- `remove-permission`
 
 ```js
 {
@@ -90,6 +92,8 @@ An event sent from a client to the relay in order to accomplish a moderation act
     ["action", "ban-user", "<pubkey-to-ban>"],
     ["action", "delete-message", "<event-id-to-delete>"],
     ["action", "edit-metadata", "<field-name>", "<field-value>"],
+    ["action", "add-permission", "<pubkey>", "<permission>"],
+    ["action", "remove-permission", "<pubkey>", "<permission>"],
   ]
 }
 ```