完善：zhub快速上手页面

back/redkale/getting-started/_category_.json

@@ -0,0 +1,7 @@
+{
+  "label": "快速开始",
+  "position": 1,
+  "link": {
+    "type": "generated-index"
+  }
+}

back/redkale/getting-started/architecture-overview.md

@@ -0,0 +1,5 @@
+---
+sidebar_position: 3
+---
+
+# 架构概述

back/redkale/getting-started/hello-world.md

@@ -0,0 +1,5 @@
+---
+sidebar_position: 2
+---
+
+# 第一个程序

back/redkale/getting-started/installation-and-configuration.md

@@ -0,0 +1,5 @@
+---
+sidebar_position: 1
+---
+
+# 安装配置