docs: fix typos for typegen'd types

Author: pcattori

docs/how-to/resource-routes.md

@@ -19,7 +19,7 @@ route("/reports/pdf/:id", "pdf-report.ts");
 ```tsx filename=pdf-report.ts
 import type { Route } from "./+types/pdf-report";
 
-export async function loader({ params }: Route.LoaderArg) {
+export async function loader({ params }: Route.LoaderArgs) {
   const report = await getReport(params.id);
   const pdf = await generateReportPDF(report);
   return new Response(pdf, {

docs/how-to/suspense.md

@@ -15,7 +15,7 @@ React Router awaits route loaders before rendering route components. To unblock
 ```tsx
 import type { Route } from "./+types/my-route";
 
-export async function loader({}: Route.LoaderArg) {
+export async function loader({}: Route.LoaderArgs) {
   // note this is NOT awaited
   let nonCriticalData = new Promise((res) =>
     setTimeout(() => "non-critical", 5000)