feat: add note about router-generator

packages/router-generator/README.md

@@ -2,3 +2,47 @@
 
 This package handle the creation of the routes.
 Basically collects and manages them in a single entry point file.
+
+## Generated route file
+
+Currently the generator file is very similar to `@tanstack/router` one but since it does not need the same
+configurability is up to strong updates.
+
+```tsx
+// This file is auto-generated by Tuono
+
+import { Route as rootRoute } from './routes/__root'
+import { Route as AboutImport } from './routes/about'
+import { Route as IndexImport } from './routes/index'
+
+// Create/Update Routes
+
+const AboutRoute = AboutImport.update({
+  path: '/about',
+  getParentRoute: () => rootRoute,
+} as any)
+
+const IndexRoute = IndexImport.update({
+  path: '/',
+  getParentRoute: () => rootRoute,
+} as any)
+
+// Populate the FileRoutesByPath interface
+
+declare module '@tanstack/react-router' {
+  interface FileRoutesByPath {
+    '/': {
+      preLoaderRoute: typeof IndexImport
+      parentRoute: typeof rootRoute
+    }
+    '/about': {
+      preLoaderRoute: typeof AboutImport
+      parentRoute: typeof rootRoute
+    }
+  }
+}
+
+// Create and export the route tree
+
+export const routeTree = rootRoute.addChildren([IndexRoute, AboutRoute])
+```