Add Chinese docs for help, contribution and development (#24925) (#25011)

Backport #24925, partially backport #24934
(`docs/content/doc/help/faq.zh-cn.md` file)

Part of backport has already done by #24942

Also backport #24881 to avoid "deadlock"

---------

Co-authored-by: Zettat123 <zettat123@gmail.com>
(cherry picked from commit 37b73b3337)

docs/content/doc/administration/search-engines-indexation.zh-cn.md

@@ -0,0 +1,39 @@
+---
+date: "2023-05-23T09:00:00+08:00"
+title: "搜索引擎索引"
+slug: "search-engines-indexation"
+weight: 60
+toc: false
+draft: false
+aliases:
+  - /zh-cn/search-engines-indexation
+menu:
+  sidebar:
+    parent: "administration"
+    name: "搜索引擎索引"
+    weight: 60
+    identifier: "search-engines-indexation"
+---
+
+# Gitea 安装的搜索引擎索引
+
+默认情况下，您的 Gitea 安装将被搜索引擎索引。
+如果您不希望您的仓库对搜索引擎可见，请进一步阅读。
+
+## 使用 robots.txt 阻止搜索引擎索引
+
+为了使 Gitea 为顶级安装提供自定义的`robots.txt`（默认为空的 404），请在[`custom`文件夹或`CustomPath`]（{{< relref "doc/administration/customizing-gitea.zh-cn.md" >}}）中创建一个名为 `robots.txt` 的文件。
+
+有关如何配置 `robots.txt` 的示例，请参考 [https://moz.com/learn/seo/robotstxt](https://moz.com/learn/seo/robotstxt)。
+
+```txt
+User-agent: *
+Disallow: /
+```
+
+如果您将Gitea安装在子目录中，则需要在顶级目录中创建或编辑 `robots.txt`。
+
+```txt
+User-agent: *
+Disallow: /gitea/
+```