Update docs/tutorials/typescript.md

docs/tutorials/typescript.md

@@ -84,7 +84,7 @@ import type { RootState, AppDispatch } from './store'
 
 // highlight-start
 // Use throughout your app instead of plain `useDispatch` and `useSelector`
-export const useAppDispatch = useDispatch.withTypes<RootState>()
+export const useAppDispatch = useDispatch.withTypes<AppDispatch>()
 export const useAppSelector = useSelector.withTypes<RootState>()
 // highlight-end
 ```