docs: tweaks

Author: kazupon

docs/.vitepress/config.mts

@@ -138,10 +138,6 @@ function sidebarGuide() {
       text: 'Advanced',
       collapsible: true,
       items: [
-        {
-          text: 'Custom Directive',
-          link: '/guide/advanced/directive'
-        },
         {
           text: 'Component Interpolation',
           link: '/guide/advanced/component'
@@ -181,6 +177,10 @@ function sidebarGuide() {
         {
           text: 'Petite Vue I18n',
           link: '/guide/advanced/lite'
+        },
+        {
+          text: 'Custom Directive',
+          link: '/guide/advanced/directive'
         }
       ]
     },

docs/guide/introduction.md

@@ -41,10 +41,6 @@ const members = [
 If you would like to know more about the maintenance status of each version of Vue I18n, please see [here](./maintenance).
 :::
 
-:::tip NOTE
-Already know Vue I18n v8.x and just want to learn about what’s new in Vue I18n v9? Check out the [Migration Guide](./migration/breaking)!
-:::
-
 Vue I18n is internationalization plugin of Vue.js. And that is one of [Intlify projects](https://intlify.dev/). It easily integrates some localization features to your Vue.js Application.
 
 Go to [Installation](./installation)