update en/device-dev/porting/Readme-EN.md.

Signed-off-by: Nester.zhou <ester.zhou@huawei.com>

en/device-dev/porting/Readme-EN.md

@@ -34,6 +34,7 @@ The download steps for other resources are the same as those in the mainline ver
     - [Board-Level Driver Adaptation](porting-chip-board-driver.md)
     - [Implementation of APIs at the HAL](porting-chip-board-hal.md)
     - [System Modules](porting-chip-board-component.md)
+    - [lwIP Module Adaptation](porting-chip-board-lwip.md)
     - [Third-party Module Adaptation](porting-chip-board-bundle.md)
     - [XTS](porting-chip-board-xts.md)
   - [FAQ](porting-chip-faqs.md)