doc: update websocket flag description to reflect stable API status

doc: update websocket flag description to reflect stable API status

Author: debbs061

doc/api/cli.md

@@ -1611,7 +1611,7 @@ changes:
     description: Syntax detection is enabled by default.
 -->
 
-Disable using [syntax detection][] to determine module type.
+Disable exposition of [`WebSocket`][] on the global scope.
 
 ### `--no-experimental-global-navigator`
 
@@ -1637,7 +1637,7 @@ Use this flag to disable top-level await in REPL.
 added: v22.0.0
 -->
 
-Use this flag to disable experimental [`WebSocket`][] support.
+Disable exposition of [`WebSocket`][] on the global scope.
 
 ### `--no-extra-info-on-fatal-exception`