Update createHashRouter usage. (#7218)

Author: onurtemizkan

src/platforms/javascript/guides/react/configuration/integrations/react-router.mdx

@@ -73,7 +73,7 @@ const router = sentryCreateBrowserRouter([
 
 <Alert level="warning" title="Note">
 
-While [`createHashRouter`](https://reactrouter.com/en/main/routers/create-hash-router) isn't supported by Sentry yet, you can instrument [`createMemoryRouter`](https://reactrouter.com/en/main/routers/create-memory-router) using the `wrapCreateBrowserRouter` function.
+You can instrument [`createMemoryRouter`](https://reactrouter.com/en/main/routers/create-memory-router) and [`createHashRouter`](https://reactrouter.com/en/main/routers/create-hash-router) using the `wrapCreateBrowserRouter` function.
 
 </Alert>