📝 Add "Development" section to sitemap for better navigation

Author: bybatkhuu

docs/dev/sitemap.md

@@ -13,6 +13,7 @@ title: Sitemap
     - [Error Codes](../getting-started/error-codes.md)
 - API Documentation
     - [MyClass](../api-docs/MyClass.md)
+- Development
     - [Test](../dev/test.md)
     - [Build](../dev/build.md)
     - [Docs](../dev/docs.md)