Enhance socket timeout description (#2055)

documentation/6-timeout.md

@@ -96,9 +96,9 @@ This timeout applies only to HTTPS requests.
 **Type: `number`**
 
 Starts when the socket is connected.\
-Resets when new data are received.
+Resets when new data is transferred.
 
-It is the same as [`request.setTimeout(timeout)`](https://nodejs.org/api/http.html#http_request_settimeout_timeout_callback).
+It is the same as [`request.setTimeout(timeout)`](https://nodejs.org/api/http.html#http_request_settimeout_timeout_callback) which calls [`socket.setTimeout(timeout)`](https://nodejs.org/api/net.html#socketsettimeouttimeout-callback) after a socket is assigned to this request and is connected.
 
 #### `send`