docs: add auto-generated query key feature

Author: 7nohe

README.md

@@ -5,6 +5,7 @@
 ## Features
 
 - Supports generation of custom react hooks that use React Query's `useQuery` and `useMutation` hooks
+- Supports generation of query keys for query caching
 - Supports the option to use pure TypeScript clients generated by [OpenAPI Typescript Codegen](https://github.com/ferdikoomen/openapi-typescript-codegen)
 
 ## Install
@@ -81,8 +82,13 @@ You can also use pure TS clients.
 ```tsx
 import { useQuery } from "@tanstack/react-query";
 import { PetService } from '../openapi/requests/services/PetService';
+import {
+  usePetServiceFindPetsByStatusKey,
+} from "../openapi/queries";
+
 function App() {
-  const { data } = useQuery(['MyKey'], () => {
+  // You can still use the auto-generated query key
+  const { data } = useQuery([usePetServiceFindPetsByStatusKey], () => {
     // Do something here
 
     return PetService.findPetsByStatus(['available']);