diff --git a/docs/en/hw-reference/esp32c3/user-guide-devkitc-02.rst b/docs/en/hw-reference/esp32c3/user-guide-devkitc-02.rst
index 0d108abe0f..0463755c84 100644
--- a/docs/en/hw-reference/esp32c3/user-guide-devkitc-02.rst
+++ b/docs/en/hw-reference/esp32c3/user-guide-devkitc-02.rst
@@ -203,6 +203,7 @@ No previous versions available.
 
 Related Documents
 =================
+* `Build Secure and Cost-effective Connected Devices with ESP32-C3 <http://c3.espressif.com/>`_
 * `ESP32-C3 Datasheet <https://www.espressif.com/sites/default/files/documentation/esp32-c3_datasheet_en.pdf>`_ (PDF) 
 * `ESP32-C3-WROOM-02 Datasheet <https://www.espressif.com/sites/default/files/documentation/esp32-c3-wroom-02_datasheet_en.pdf>`_ (PDF)
 * `ESP32-C3-DevKitC-02 Schematic <https://dl.espressif.com/dl/schematics/SCH_ESP32-C3-DEVKITC-02_V1_1_20210126A.pdf>`_ (PDF)
diff --git a/docs/en/hw-reference/esp32c3/user-guide-devkitm-1.rst b/docs/en/hw-reference/esp32c3/user-guide-devkitm-1.rst
index aa53908c29..e551e5ce8d 100644
--- a/docs/en/hw-reference/esp32c3/user-guide-devkitm-1.rst
+++ b/docs/en/hw-reference/esp32c3/user-guide-devkitm-1.rst
@@ -202,6 +202,7 @@ No previous versions available.
 
 Related Documents
 =================
+* `Build Secure and Cost-effective Connected Devices with ESP32-C3 <http://c3.espressif.com/>`_
 * `ESP32-C3 Datasheet <https://www.espressif.com/sites/default/files/documentation/esp32-c3_datasheet_en.pdf>`_ (PDF)
 * `ESP32-C3-MINI-1 Datasheet <https://www.espressif.com/sites/default/files/documentation/esp32-c3-mini-1_datasheet_en.pdf>`_ (PDF)
 * `ESP32-C3-DevKitM-1 Schematic <https://dl.espressif.com/dl/schematics/SCH_ESP32-C3-DEVKITM-1_V1_20200915A.pdf>`_ (PDF)
diff --git a/docs/zh_CN/hw-reference/esp32c3/user-guide-devkitc-02.rst b/docs/zh_CN/hw-reference/esp32c3/user-guide-devkitc-02.rst
index f51464e2dd..f3abdb1d80 100644
--- a/docs/zh_CN/hw-reference/esp32c3/user-guide-devkitc-02.rst
+++ b/docs/zh_CN/hw-reference/esp32c3/user-guide-devkitc-02.rst
@@ -202,6 +202,7 @@ J3
 
 相关文档
 ========
+* `使用 ESP32-C3 构建安全高性价比的互联设备 <http://c3.espressif.com/>`_
 * `ESP32-C3 技术规格书 <https://www.espressif.com/sites/default/files/documentation/esp32-c3_datasheet_cn.pdf>`_ (PDF) 
 * `ESP32-C3-WROOM-02 规格书 <https://www.espressif.com/sites/default/files/documentation/esp32-c3-wroom-02_datasheet_cn.pdf>`_ (PDF)
 * `ESP32-C3-DevKitC-02 原理图 <https://dl.espressif.com/dl/schematics/SCH_ESP32-C3-DEVKITC-02_V1_1_20210126A.pdf>`_ (PDF)
diff --git a/docs/zh_CN/hw-reference/esp32c3/user-guide-devkitm-1.rst b/docs/zh_CN/hw-reference/esp32c3/user-guide-devkitm-1.rst
index fb7d7a53d1..c3761ddf62 100644
--- a/docs/zh_CN/hw-reference/esp32c3/user-guide-devkitm-1.rst
+++ b/docs/zh_CN/hw-reference/esp32c3/user-guide-devkitm-1.rst
@@ -93,6 +93,7 @@ ESP32-C3-DevKitM-1 是一款入门级开发板，使用以尺寸小而得名的
 
 零售订单请前往 https://www.espressif.com/zh-hans/company/contact/buy-a-sample。
 
+
 批量订单
 ^^^^^^^^
 
@@ -100,7 +101,6 @@ ESP32-C3-DevKitM-1 是一款入门级开发板，使用以尺寸小而得名的
 
 批量订单请参考 `乐鑫产品订购信息 <https://www.espressif.com/sites/default/files/documentation/espressif_products_ordering_information_cn.pdf>`__ (PDF)。
 
-
 硬件参考
 ========
 
@@ -200,6 +200,7 @@ J3
 
 相关文档
 ========
+* `使用 ESP32-C3 构建安全高性价比的互联设备 <http://c3.espressif.com/>`_
 * `ESP32-C3 技术规格书 <https://www.espressif.com/sites/default/files/documentation/esp32-c3_datasheet_cn.pdf>`_ (PDF) 
 * `ESP32-C3-MINI-1 规格书 <https://www.espressif.com/sites/default/files/documentation/esp32-c3-mini-1_datasheet_cn.pdf>`_ (PDF)
 * `ESP32-C3-DevKitM-1 原理图 <https://dl.espressif.com/dl/schematics/SCH_ESP32-C3-DEVKITM-1_V1_20200915A.pdf>`_ (PDF)
@@ -207,4 +208,4 @@ J3
 * `ESP32-C3-DevKitM-1 尺寸图 <https://dl.espressif.com/dl/schematics/DIMENSION_ESP32-C3-DEVKITM-1_V1_20200915AA.dxf>`_ (PDF)
 * `ESP32-C3-DevKitM-1 尺寸图源文件 <https://dl.espressif.com/dl/schematics/DIMENSION_ESP32-C3-DEVKITM-1_V1_20200915AA.dxf>`_ (DXF) - 可使用 `Autodesk Viewer <https://viewer.autodesk.com/>`_ 查看
 
-有关本开发板的更多设计文档，请联系我们的商务部门 `sales@espressif.com <sales@espressif.com>`_。
+有关本开发板的更多设计文档，请联系我们的商务部门 `sales@espressif.com <sales@espressif.com>`_。
\ No newline at end of file