openapi-fetch: provide API docs for Request parameter

Author: sgrishchenko

docs/openapi-fetch/api.md

@@ -17,6 +17,7 @@ createClient<paths>(options);
 | :---------------- | :-------------- | :-------------------------------------------------------------------------------------------------------------------------------------- |
 | `baseUrl`         | `string`        | Prefix all fetch URLs with this option (e.g. `"https://myapi.dev/v1/"`)                                                                 |
 | `fetch`           | `fetch`         | Fetch instance used for requests (default: `globalThis.fetch`)                                                                          |
+| `Request`         | `Request`       | Request constructor used for requests (default: `globalThis.Request`)                                                                   |
 | `querySerializer` | QuerySerializer | (optional) Provide a [querySerializer](#queryserializer)                                                                                |
 | `bodySerializer`  | BodySerializer  | (optional) Provide a [bodySerializer](#bodyserializer)                                                                                  |
 | (Fetch options)   |                 | Any valid fetch option (`headers`, `mode`, `cache`, `signal` …) ([docs](https://developer.mozilla.org/en-US/docs/Web/API/fetch#options) |
@@ -36,8 +37,9 @@ client.GET("/my-url", options);
 | `querySerializer` | QuerySerializer                                                   | (optional) Provide a [querySerializer](#queryserializer)                                                                                                                                                                          |
 | `bodySerializer`  | BodySerializer                                                    | (optional) Provide a [bodySerializer](#bodyserializer)                                                                                                                                                                            |
 | `parseAs`         | `"json"` \| `"text"` \| `"arrayBuffer"` \| `"blob"` \| `"stream"` | (optional) Parse the response using [a built-in instance method](https://developer.mozilla.org/en-US/docs/Web/API/Response#instance_methods) (default: `"json"`). `"stream"` skips parsing altogether and returns the raw stream. |
-| `baseUrl`         | `string`                                                          | Prefix the fetch URL with this option (e.g. `"https://myapi.dev/v1/"`)                                                                                                                                                              |
+| `baseUrl`         | `string`                                                          | Prefix the fetch URL with this option (e.g. `"https://myapi.dev/v1/"`)                                                                                                                                                            |
 | `fetch`           | `fetch`                                                           | Fetch instance used for requests (default: fetch from `createClient`)                                                                                                                                                             |
+| `Request`         | `Request`                                                         | Request constructor used for requests (default: Request from `createClient`)                                                                                                                                                      |
 | `middleware`      | `Middleware[]`                                                    | [See docs](/openapi-fetch/middleware-auth)                                                                                                                                                                                        |
 | (Fetch options)   |                                                                   | Any valid fetch option (`headers`, `mode`, `cache`, `signal`, …) ([docs](https://developer.mozilla.org/en-US/docs/Web/API/fetch#options))                                                                                         |