feat: rock 4d emmc support in download

Author: EESN-W

docs/rock4/rock4d/download.md

@@ -46,9 +46,9 @@ Android 系统镜像：
 
 #### Linux 系统镜像
 
-若没有清除过 SPI Flash，可以直接写入系统镜像到 MicroSD 卡 / UFS 模块 / NVME 启动系统。
+若没有清除过 SPI Flash，可以直接写入系统镜像到 MicroSD 卡 / UFS 模块 / NVME / eMMC 启动系统。
 
-- 适用于 MicroSD 卡 / NVME SSD / U 盘 等介质启动的系统镜像： [Linux-SD-NVME-UDisk.img.xz](https://github.com/radxa-build/radxa-rk3576/releases/download/rsdk-b3/radxa-rk3576_bookworm_kde_b3.output_512.img.xz)
+- 适用于 MicroSD 卡 / NVME SSD / U 盘 / eMMC 等介质启动的系统镜像： [Linux-SD-NVME-UDisk.img.xz](https://github.com/radxa-build/radxa-rk3576/releases/download/rsdk-b3/radxa-rk3576_bookworm_kde_b3.output_512.img.xz)
 
 - 适用于 UFS 启动的系统镜像： [Linux-UFS.img.xz](https://github.com/radxa-build/radxa-rk3576/releases/download/rsdk-b3/radxa-rk3576_bookworm_kde_b3.output_4096.img.xz)
 

i18n/en/docusaurus-plugin-content-docs/current/rock4/rock4d/download.md

@@ -46,9 +46,9 @@ For erasing and flashing SPI boot firmware, please refer to the [Erase/Flash SPI
 
 #### Linux System Images
 
-If you haven't cleared the SPI Flash, you can directly write the system image to a MicroSD card / UFS module / NVMe drive to boot the system.
+If you haven't cleared the SPI Flash, you can directly write the system image to a MicroSD card / UFS module / eMMC Module / NVMe drive to boot the system.
 
-- System image for MicroSD card / NVMe SSD / USB drive boot: [Linux-SD-NVME-UDisk.img.xz](https://github.com/radxa-build/radxa-rk3576/releases/download/rsdk-b3/radxa-rk3576_bookworm_kde_b3.output_512.img.xz)
+- System image for MicroSD card / NVMe SSD / USB drive / eMMC boot: [Linux-SD-NVME-UDisk.img.xz](https://github.com/radxa-build/radxa-rk3576/releases/download/rsdk-b3/radxa-rk3576_bookworm_kde_b3.output_512.img.xz)
 
 - System image for UFS boot: [Linux-UFS.img.xz](https://github.com/radxa-build/radxa-rk3576/releases/download/rsdk-b3/radxa-rk3576_bookworm_kde_b3.output_4096.img.xz)