[fix] Make websocket metrics module agnostic

Author: MattDodsonEnglish

src/data/markdown/translated-guides/en/02 Using k6/02 Metrics/000-reference.md

@@ -96,8 +96,8 @@ Apart from the usual HTTP specific metrics that k6 already tracks, the browser m
 | ws_session_duration | Trend   | Duration of the WebSocket session. Time between the start of the connection and the end of the VU execution. |
 | ws_sessions         | Counter | Total number of started WebSocket sessions.                                                                  |
 | ws_ping             | Trend   | Duration between a ping request and its pong reception                                                       |
-| ws_msgs_sent        | Counter | Total number of messages sent through [Socket.send(data)](/javascript-api/k6-ws/socket/socket-send)          |
-| ws_msgs_received    | Counter | Total number of messages received                                                                            |
+| ws_msgs_sent        | Counter | Total number of messages sent                                                                                |
+| ws_msgs_received    | Counter | Total number of received messages                                                                            |
 
 ## Built-in gRPC metrics {#grpc}