docs: update nextjs documentation

Author: xiaoyu2er

apps/docs/content/en/docs/01-app/01-getting-started/10-updating-data.mdx

@@ -259,15 +259,15 @@ While executing a Server Function, you can show a loading indicator with React's
 ```tsx filename="app/ui/button.tsx" switcher
 'use client'
 
-import { useActionState } from 'react'
+import { useActionState, startTransition } from 'react'
 import { createPost } from '@/app/actions'
 import { LoadingSpinner } from '@/app/ui/loading-spinner'
 
 export function Button() {
   const [state, action, pending] = useActionState(createPost, false)
 
   return (
-    <button onClick={async () => action()}>
+    <button onClick={() => startTransition(action)}>
       {pending ? <LoadingSpinner /> : 'Create Post'}
     </button>
   )
@@ -277,15 +277,15 @@ export function Button() {
 ```jsx filename="app/ui/button.js" switcher
 'use client'
 
-import { useActionState } from 'react'
+import { useActionState, startTransition } from 'react'
 import { createPost } from '@/app/actions'
 import { LoadingSpinner } from '@/app/ui/loading-spinner'
 
 export function Button() {
   const [state, action, pending] = useActionState(createPost, false)
 
   return (
-    <button onClick={async () => action()}>
+    <button onClick={() => startTransition(action)}>
       {pending ? <LoadingSpinner /> : 'Create Post'}
     </button>
   )