Update RouterProvider.md for include some docs for flushSync prop

contributors.yml

@@ -365,6 +365,7 @@
 - valerii15298
 - ValiantCat
 - vdusart
+- vezaynk
 - VictorElHajj
 - vijaypushkin
 - vikingviolinist
@@ -388,3 +389,4 @@
 - yuleicul
 - zeromask1337
 - zheng-chuang
+

docs/api/data-routers/RouterProvider.md

@@ -31,7 +31,39 @@ createRoot(document.getElementById("root")).render(
 
 [modes: data]
 
-_No documentation_
+Provides `flushSync` implementation required for using the `flushSync` option in navigation functions provided by [`useNavigate`](/api/hooks/useNavigate#signature) and [`useSearchParams`](/api/hooks/useSearchParams#setsearchparams-function).
+
+```tsx
+import {
+  RouterProvider,
+  createBrowserRouter,
+} from "react-router";
+import { flushSync } from 'react-dom'
+import { createRoot } from "react-dom/client";
+let router = createBrowserRouter();
+createRoot(document.getElementById("root")).render(
+  <RouterProvider
+    router={router}
+    flushSync={(fn) => {
+      flushSync(fn);
+    }}
+  />
+);
+```
+
+This prop is provided automatically if the `RouterProvider` is imported from the `react-router/dom` package.
+
+```tsx
+import {
+  createBrowserRouter,
+} from "react-router";
+import { RouterProvider } from "react-router/dom";
+import { createRoot } from "react-dom/client";
+let router = createBrowserRouter();
+createRoot(document.getElementById("root")).render(
+  <RouterProvider router={router} />
+);
+```
 
 ### router