Fix typo in breaking.md (#354)

* Update breaking.md

* Update breaking.md

fix for `<i18n-n>`

Author: ota-meshi

docs/guide/migration/breaking.md

@@ -420,12 +420,12 @@ Vue I18n v9 or later:
 
 ### `tag` prop is optional
 
-In Vue I18n v8.x, `tag` prop could be used to render child elements without the root element by specifying a tag name and the `Boolean` value `true`.
+In Vue I18n v8.x, `tag` prop could be used to render child elements without the root element by specifying a tag name and the `Boolean` value `false`.
 
 Vue I18n v8.x:
 
 ```html{1,3}
-<i18n tag="true" path="message.greeting">
+<i18n :tag="false" path="message.greeting">
   <span>hello!</span>
 </i18n>
 ```
@@ -488,12 +488,12 @@ Vue I18n v9 or later:
 
 ### `tag` prop is optional
 
-Similar to *[Translation component section](#tag-prop-is-optional)*, In NumberFormat component (called *i18n-n functional component* in Vue I18n v8.x) `tag` prop could be used to render child elements without the root element by specifying a tag name and the `Boolean` value `true`.
+Similar to *[Translation component section](#tag-prop-is-optional)*, In NumberFormat component (called *i18n-n functional component* in Vue I18n v8.x) `tag` prop could be used to render child elements without the root element by specifying a tag name and the `Boolean` value `false`.
 
 Vue I18n v8.x:
 
 ```html
-<i18n-n tag="true" :value="100" format="currency">
+<i18n-n :tag="false" :value="100" format="currency">
   <span v-slot:integer="slotProps" styles="font-weight: bold">{{ slotProps.integer }}</span>
 </i18n-n>
 ```