[DOC] Update to the latest product doc link and fix the DBaaS link (#5956)

Author: zhanghuidinah

README-CN.md

@@ -68,21 +68,21 @@ NebulaGraph内核 1.x 与 2.x 数据格式、通信协议、客户端等均双
 
 ## 快速使用
 
-您可以在[云上](https://docs.nebula-graph.com.cn/3.3.0/2.quick-start/1.quick-start-overview/#_2)或[本地](https://docs.nebula-graph.com.cn/3.3.0/2.quick-start/1.quick-start-overview/#_6)快速体验 **NebulaGraph**。
+您可以在[云上](https://cloud.nebula-graph.io/login)或[本地](https://docs.nebula-graph.com.cn/3.8.0/2.quick-start/3.quick-start-on-premise/2.install-nebula-graph/)快速体验 **NebulaGraph**。
 
 <!--
 在开始使用 **NebulaGraph** 之前，必须通过[编译源码](https://docs.nebula-graph.com.cn/manual-CN/3.build-develop-and-administration/1.build/1.build-source-code/)或者 [docker compose](https://docs.nebula-graph.com.cn/manual-CN/3.build-develop-and-administration/1.build/2.build-by-docker/) 方式安装 **NebulaGraph**。您也可以观看[视频](https://space.bilibili.com/472621355)学习如何安装 **NebulaGraph**。
 -->
 
 ## 安装方式
 
-您可以通过[下载](https://www.nebula-graph.com.cn/download)安装包或者[源码编译](https://docs.nebula-graph.com.cn/3.3.0/4.deployment-and-installation/2.compile-and-install-nebula-graph/1.install-nebula-graph-by-compiling-the-source-code/)安装 **NebulaGraph**：
+您可以通过[下载](https://www.nebula-graph.com.cn/download)安装包或者[源码编译](https://docs.nebula-graph.com.cn/3.8.0/2.quick-start/3.quick-start-on-premise/2.install-nebula-graph/)安装 **NebulaGraph**：
 
 ## 获取帮助
 
 在使用 **NebulaGraph** 过程中遇到任何问题，都可以通过下面的方式寻求帮助：
 
-* [FAQ](https://docs.nebula-graph.com.cn/3.3.0/20.appendix/0.FAQ/)
+* [FAQ](https://docs.nebula-graph.com.cn/3.8.0/20.appendix/0.FAQ/)
 * [访问论坛](https://discuss.nebula-graph.com.cn/)
 * [查看文档](https://docs.nebula-graph.com.cn/)
 

README.md

@@ -69,26 +69,26 @@ See our [Roadmap](https://github.com/vesoft-inc/nebula/wiki/Nebula-Graph-Roadmap
 
 ## Quick start
 
-Read the [getting started](https://docs.nebula-graph.io/3.6.0/2.quick-start/1.quick-start-workflow/) docs for a quick start.
+Read the [getting started](https://docs.nebula-graph.io/3.8.0/2.quick-start/1.quick-start-workflow/) docs for a quick start.
 
 ## Using NebulaGraph
 
 NebulaGraph is a distributed graph database with multiple components. You can [download](https://www.nebula-graph.io/download) or try in following ways:
 
-- [Build from source](https://docs.nebula-graph.io/3.3.0/4.deployment-and-installation/2.compile-and-install-nebula-graph/1.install-nebula-graph-by-compiling-the-source-code/)
+- [Build from source](https://docs.nebula-graph.io/3.8.0/2.quick-start/2.install-nebula-graph/)
 
-- In the cloud: [AWS](https://docs.nebula-graph.io/3.1.3/nebula-cloud/nebula-cloud-on-aws/1.aws-overview/) and [Azure](https://docs.nebula-graph.io/3.1.3/nebula-cloud/nebula-cloud-on-azure/azure-self-managed/1.azure-overview/)
+- In the cloud: [AWS](https://cloud.nebula-graph.io/login)
 
 ## Getting help
 
 In case you encounter any problems playing around **NebulaGraph**, please reach out for help:
-* [FAQ](https://docs.nebula-graph.io/3.6.0/20.appendix/0.FAQ/)
+* [FAQ](https://docs.nebula-graph.io/3.8.0/20.appendix/0.FAQ/)
 * [Discussions](https://github.com/vesoft-inc/nebula/discussions)
 * [Documentation](https://docs.nebula-graph.io/)
 
 ## DevTools
 
-NebulaGraph comes with a set of tools to help you manage and monitor your graph database. See [Ecosystem](https://docs.nebula-graph.io/3.6.0/20.appendix/6.eco-tool-version/).
+NebulaGraph comes with a set of tools to help you manage and monitor your graph database. See [Ecosystem](https://docs.nebula-graph.io/3.8.0/20.appendix/6.eco-tool-version/).
 
 ## Contributing