update key-attribute.md (#1233)

wxsms · web-flow · commit c180327b5690 · 2021-09-12T07:25:39.000+02:00
diff --git a/src/guide/migration/key-attribute.md b/src/guide/migration/key-attribute.md
@@ -3,7 +3,7 @@ badges:
   - breaking
 ---
 
-# `key` attribute <MigrationBadges :badges="$frontmatter.badges" />
+# `key` Attribute <MigrationBadges :badges="$frontmatter.badges" />
 
 ## Overview
 
