Add quickstart button

docs/en/index.md

@@ -10,6 +10,9 @@ hero:
     alt: Xray, Penetrates Everything
   actions:
     - theme: brand
+      text: Quickstart
+      link: /en/document/
+    - theme: alt
       text: Configuration guide
       link: /en/config/
     - theme: alt

docs/index.md

@@ -11,6 +11,9 @@ hero:
     alt: Xray, Penetrates Everything
   actions:
     - theme: brand
+      text: 快速上手
+      link: /document/
+    - theme: alt
       text: 配置指南
       link: /config/
     - theme: alt

docs/ru/index.md

@@ -10,6 +10,9 @@ hero:
     alt: Xray, Penetrates Everything
   actions:
     - theme: brand
+      text: Первые шаги
+      link: /ru/document/
+    - theme: alt
       text: Руководство по конфигурации
       link: /ru/config/
     - theme: alt