docs: add documentation index page

docs-cn/01-index.md

+---
+title: 文档首页
+slug: /
+---
+
+TDengine 是一款高性能、分布式、支持 SQL 的时序数据库。本文档是TDengine用户手册，主要是介绍TDengine的基本概念、安装、使用、功能、开发接口、运营维护、TDengine内核设计等等。主要是面向架构师、开发者与系统管理员的。
+
+TDengine充分利用了时序数据的特点，提出了“一个数据采集点一张表”与“超级表”的概念，设计了创新的存储引擎，让数据的写入、查询和存储效率都得到极大的提升，因此无论如何，请您仔细阅读基本概念一章。
+
+如果你是开发者，请一定仔细阅读开发指南一章，该部分对数据库连接、建模、插入数据、查询、连续查询、缓存、数据订阅、用户自定义函数等功能都做了详细介绍，并配有各种编程语言的示例代码。大部分情况下，你只要把示例代码拷贝粘贴，针对自己的应用稍作改动，就能跑起来。
+
+我们已经生活在大数据的时代，纵向扩展已经无法满足日益增长的业务需求，任何系统都必须有水平扩张的能力。集群成为大数据系统的不可缺失功能，TDengine团队将这一重要核心功能开源。怎么部署、管理和维护TDengine集群，请参考集群管理一章。
+
+TDengine采用SQL作为其查询语言，大大降低学习成本、降低迁移成本，但同时针对时序数据场景，又做了一些扩展。“SQL手册”一章详细描述了SQL语法、详细列出了各种支持的命令和函数
+
+如果你是系统管理员，关心安装、升级、容错灾备、关心数据导入、导出，配置参数，怎么监测TDengine是否健康运行，怎么提升系统运行的性能，那么请仔细参考“运维指南”一张。
+
+如果你对TDengine外围工具，REST API, 各种编程语言的连接器想做更多详细了解，请看“参考指南”一章。
+
+如果你对TDengine内部的架构设计很有兴趣，欢迎仔细阅读”技术内幕“一章，里面对集群的设计、数据分区、分片、写入、读出的流程都做了详细的介绍。如果你想研读TDengine代码甚至贡献代码，请一定仔细读完这一章。
+
+最后，作为一个开源软件，欢迎大家的参与。如果发现文档的任何错误，描述不清晰的地方，都请在每个页面的最下方，点击“编辑本文档“直接进行修改。
+
+Together, we make a difference!

docs-cn/01-intro/_category_.yml

-label: TDengine 介绍

docs-cn/01-intro/01-intro.md → docs-cn/02-intro.md

 ---
-sidebar_label: 产品简介
 title: 产品简介
 toc_max_heading_level: 2
 ---

docs-cn/14-reference/03-connector/csharp.mdx

@@ -9,12 +9,12 @@ import Tabs from '@theme/Tabs';
 import TabItem from '@theme/TabItem';
 
 import Preparition from "./_preparition.mdx"
-import CSInsert from "../../04-develop/03-insert-data/_cs_sql.mdx"
-import CSInfluxLine from "../../04-develop/03-insert-data/_cs_line.mdx"
-import CSOpenTSDBTelnet from "../../04-develop/03-insert-data/_cs_opts_telnet.mdx"
-import CSOpenTSDBJson from "../../04-develop/03-insert-data/_cs_opts_json.mdx"
-import CSQuery from "../../04-develop/04-query-data/_cs.mdx"
-import CSAsyncQuery from "../../04-develop/04-query-data/_cs_async.mdx"
+import CSInsert from "../../07-develop/03-insert-data/_cs_sql.mdx"
+import CSInfluxLine from "../../07-develop/03-insert-data/_cs_line.mdx"
+import CSOpenTSDBTelnet from "../../07-develop/03-insert-data/_cs_opts_telnet.mdx"
+import CSOpenTSDBJson from "../../07-develop/03-insert-data/_cs_opts_json.mdx"
+import CSQuery from "../../07-develop/04-query-data/_cs.mdx"
+import CSAsyncQuery from "../../07-develop/04-query-data/_cs_async.mdx"
 
 `TDengine.Connector` 是 TDengine 提供的 C# 语言连接器。C# 开发人员可以通过它开发存取 TDengine 集群数据的 C# 应用软件。
 

docs-cn/14-reference/03-connector/go.mdx

@@ -9,11 +9,11 @@ import Tabs from '@theme/Tabs';
 import TabItem from '@theme/TabItem';
 
 import Preparition from "./_preparition.mdx"
-import GoInsert from "../../04-develop/03-insert-data/_go_sql.mdx"
-import GoInfluxLine from "../../04-develop/03-insert-data/_go_line.mdx"
-import GoOpenTSDBTelnet from "../../04-develop/03-insert-data/_go_opts_telnet.mdx"
-import GoOpenTSDBJson from "../../04-develop/03-insert-data/_go_opts_json.mdx"
-import GoQuery from "../../04-develop/04-query-data/_go.mdx"
+import GoInsert from "../../07-develop/03-insert-data/_go_sql.mdx"
+import GoInfluxLine from "../../07-develop/03-insert-data/_go_line.mdx"
+import GoOpenTSDBTelnet from "../../07-develop/03-insert-data/_go_opts_telnet.mdx"
+import GoOpenTSDBJson from "../../07-develop/03-insert-data/_go_opts_json.mdx"
+import GoQuery from "../../07-develop/04-query-data/_go.mdx"
 
 `driver-go` 是 TDengine 的官方 Go 语言连接器，实现了 Go 语言[ database/sql ](https://golang.org/pkg/database/sql/) 包的接口。Go 开发人员可以通过它开发存取 TDengine 集群数据的应用软件。
 

docs-cn/14-reference/03-connector/node.mdx

@@ -9,12 +9,12 @@ import Tabs from "@theme/Tabs";
 import TabItem from "@theme/TabItem";
 
 import Preparition from "./_preparition.mdx";
-import NodeInsert from "../../04-develop/03-insert-data/_js_sql.mdx";
-import NodeInfluxLine from "../../04-develop/03-insert-data/_js_line.mdx";
-import NodeOpenTSDBTelnet from "../../04-develop/03-insert-data/_js_opts_telnet.mdx";
-import NodeOpenTSDBJson from "../../04-develop/03-insert-data/_js_opts_json.mdx";
-import NodeQuery from "../../04-develop/04-query-data/_js.mdx";
-import NodeAsyncQuery from "../../04-develop/04-query-data/_js_async.mdx";
+import NodeInsert from "../../07-develop/03-insert-data/_js_sql.mdx";
+import NodeInfluxLine from "../../07-develop/03-insert-data/_js_line.mdx";
+import NodeOpenTSDBTelnet from "../../07-develop/03-insert-data/_js_opts_telnet.mdx";
+import NodeOpenTSDBJson from "../../07-develop/03-insert-data/_js_opts_json.mdx";
+import NodeQuery from "../../07-develop/04-query-data/_js.mdx";
+import NodeAsyncQuery from "../../07-develop/04-query-data/_js_async.mdx";
 
 `td2.0-connector` 和 `td2.0-rest-connector` 是 TDengine 的官方 Node.js 语言连接器。Node.js 开发人员可以通过它开发可以存取 TDengine 集群数据的应用软件。
 

docs-cn/14-reference/03-connector/rust.mdx

@@ -9,11 +9,11 @@ import Tabs from '@theme/Tabs';
 import TabItem from '@theme/TabItem';
 
 import Preparition from "./_preparition.mdx"
-import RustInsert from "../../04-develop/03-insert-data/_rust_sql.mdx"
-import RustInfluxLine from "../../04-develop/03-insert-data/_rust_line.mdx"
-import RustOpenTSDBTelnet from "../../04-develop/03-insert-data/_rust_opts_telnet.mdx"
-import RustOpenTSDBJson from "../../04-develop/03-insert-data/_rust_opts_json.mdx"
-import RustQuery from "../../04-develop/04-query-data/_rust.mdx"
+import RustInsert from "../../07-develop/03-insert-data/_rust_sql.mdx"
+import RustInfluxLine from "../../07-develop/03-insert-data/_rust_line.mdx"
+import RustOpenTSDBTelnet from "../../07-develop/03-insert-data/_rust_opts_telnet.mdx"
+import RustOpenTSDBJson from "../../07-develop/03-insert-data/_rust_opts_json.mdx"
+import RustQuery from "../../07-develop/04-query-data/_rust.mdx"
 
 [![Crates.io](https://img.shields.io/crates/v/libtaos)](https://crates.io/crates/libtaos) ![Crates.io](https://img.shields.io/crates/d/libtaos) [![docs.rs](https://img.shields.io/docsrs/libtaos)](https://docs.rs/libtaos)