From b3a933aedfccad5dcade346195f6a43e553da3a4 Mon Sep 17 00:00:00 2001
From: Naoki Endoh <naoki.endoh@gmail.com>
Date: Tue, 8 Jun 2021 20:43:01 +0900
Subject: [PATCH] docs: Update key-attribute.md

https://github.com/vuejs/docs-next/commit/43d1ccf0e1a56d817e2b137620a030965da81667
---
 src/guide/migration/key-attribute.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/guide/migration/key-attribute.md b/src/guide/migration/key-attribute.md
index a76bafbb..82fddddf 100644
--- a/src/guide/migration/key-attribute.md
+++ b/src/guide/migration/key-attribute.md
@@ -59,8 +59,8 @@ Vue 2.x では、`<template>` タグに `key` を含めることができませ
 ```html
 <!-- Vue 2.x -->
 <template v-for="item in list">
-  <div :key="item.id">...</div>
-  <span :key="item.id">...</span>
+  <div :key="'heading-' + item.id">...</div>
+  <span :key="'content-' + item.id">...</span>
 </template>
 ```