docs: add historical version download link

docs/en/28-releases/01-tdengine.md

@@ -1,9 +1,13 @@
 ---
 sidebar_label: TDengine
-title: TDengine
+title: TDengine Release History and Download Links
 description: TDengine release history, Release Notes and download links.
 ---
 
+TDengine 3.x installation packages can be downloaded at the following links:
+
+For TDengine 2.x installation packages by version, please visit [here](https://www.taosdata.com/all-downloads).
+
 import Release from "/components/ReleaseV3";
 
 ## 3.0.1.6
@@ -33,4 +37,3 @@ import Release from "/components/ReleaseV3";
 ## 3.0.1.0
 
 <Release type="tdengine" version="3.0.1.0" />
-

docs/en/28-releases/02-tools.md

@@ -1,9 +1,13 @@
 ---
-sidebar_label: taosTools 
-title: taosTools
+sidebar_label: taosTools
+title: taosTools Release History and Download Links
 description: taosTools release history, Release Notes, download links.
 ---
 
+taosTools installation packages can be downloaded at the following links:
+
+For other historical version installers, please visit [here](https://www.taosdata.com/all-downloads).
+
 import Release from "/components/ReleaseV3";
 
 ## 2.2.7

docs/zh/28-releases/01-tdengine.md

@@ -4,7 +4,9 @@ title: TDengine 发布历史及下载链接
 description: TDengine 发布历史、Release Notes 及下载链接
 ---
 
-各版本 TDengine 安装包下载链接如下：
+TDengine 3.x 各版本安装包下载链接如下：
+
+TDengine 2.x 各版本安装包请访问[这里](https://www.taosdata.com/all-downloads)
 
 import Release from "/components/ReleaseV3";
 

docs/zh/28-releases/02-tools.md

@@ -4,7 +4,9 @@ title: taosTools 发布历史及下载链接
 description: taosTools 的发布历史、Release Notes 和下载链接
 ---
 
-各版本 taosTools 安装包下载链接如下：
+taosTools 各版本安装包下载链接如下：
+
+其他历史版本安装包请访问[这里](https://www.taosdata.com/all-downloads)
 
 import Release from "/components/ReleaseV3";