Update docs markdown file weight to make it clear (#23909)

For Docusaurus, it needs a meta data named `sidebar_position`, so we
copy all `weight` under `menu/sidebar` as top meta key.

docs/content/doc/development/integrations.en-us.md

@@ -2,7 +2,7 @@
 date: "2019-04-15T17:29:00+08:00"
 title: "Integrations"
 slug: "integrations"
-weight: 40
+weight: 65
 toc: false
 draft: false
 menu:

docs/content/doc/development/integrations.zh-tw.md

@@ -2,7 +2,7 @@
 date: "2019-04-15T17:29:00+08:00"
 title: "整合"
 slug: "integrations"
-weight: 40
+weight: 65
 toc: false
 draft: false
 menu:

docs/content/doc/development/migrations.en-us.md

@@ -2,7 +2,7 @@
 date: "2019-04-15T17:29:00+08:00"
 title: "Migrations Interfaces"
 slug: "migrations-interfaces"
-weight: 30
+weight: 55
 toc: false
 draft: false
 menu:

docs/content/doc/development/migrations.zh-tw.md

@@ -2,7 +2,7 @@
 date: "2019-04-15T17:29:00+08:00"
 title: "遷移介面"
 slug: "migrations-interfaces"
-weight: 30
+weight: 55
 toc: false
 draft: false
 menu: