fixed cac69e31 from https://gitee.com/ge-yafang/docs/pulls/2667

update zh-cn/application-dev/quick-start/Readme-CN.md.
Signed-off-by: N@ge-yafang <geyafang@huawei.com>

zh-cn/application-dev/quick-start/Readme-CN.md

 # 入门
 
 - 快速入门
-    - [前言](start-overview.md)
+    - [开发准备](start-overview.md)
     - [使用eTS语言开发](start-with-ets.md)
     - [使用JS语言开发（传统代码方式）](start-with-js.md)
     - [使用JS语言开发（低代码方式）](start-with-js-low-code.md)