Clarify REGISTER verb description in 5D.md

Updated the description for the REGISTER verb in napplet-to-shell messages.

Author: dskvr

5D.md

@@ -38,7 +38,7 @@ The shell identifies senders via `MessageEvent.source` (unforgeable Window refer
 
 | Verb | Format | Description |
 |------|--------|-------------|
-| `REGISTER` | `["REGISTER", <payload>]` | Announce napplet type and claimed hash |
+| `REGISTER` | `["REGISTER", <payload>]` | Announce napplet type |
 | `EVENT` | `["EVENT", <event>]` | Publish or command event |
 | `REQ` | `["REQ", <sub_id>, <filter>, ...]` | Open subscription per [NIP-01](01.md) |
 | `CLOSE` | `["CLOSE", <sub_id>]` | Close subscription |