doc: include context on .toWeb() parameters

Refs: #46347
PR-URL: #46617
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Harshitha K P <harshitha014@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

doc/api/stream.md

@@ -2976,8 +2976,14 @@ added: v17.0.0
 * `streamReadable` {stream.Readable}
 * `options` {Object}
   * `strategy` {Object}
-    * `highWaterMark` {number}
-    * `size` {Function}
+    * `highWaterMark` {number} The maximum internal queue size (of the created
+      `ReadableStream`) before backpressure is applied in reading from the given
+      `stream.Readable`. If no value is provided, it will be taken from the
+      given `stream.Readable`.
+    * `size` {Function} A function that size of the given chunk of data.
+      If no value is provided, the size will be `1` for all the chunks.
+      * `chunk` {any}
+      * Returns: {number}
 * Returns: {ReadableStream}
 
 ### `stream.Writable.fromWeb(writableStream[, options])`