update en/application-dev/website.md.

Signed-off-by: N@ge-yafang <geyafang@huawei.com>

en/application-dev/website.md

@@ -2,6 +2,12 @@
 
 - [Application Development Overview](application-dev-guide.md)
 - Quick Start
+  - Getting Started
+    - [Preparations](quick-start/start-overview.md)
+    - [Getting Started with eTS](quick-start/start-with-ets.md)
+    - [Getting Started with JavaScript in the Traditional Coding Approach](quick-start/start-with-js.md)
+    - [Getting Started with JavaScript in the Low-Code Approach](quick-start/start-with-js-low-code.md)
+  - Development Fundamentals
     - [Directory Structure](quick-start/package-structure.md)
     - [Resource File Categories](quick-start/basic-resource-file-categories.md)
 - Development