add ChangeLog

README.en.md

@@ -28,6 +28,7 @@ You can get introduction of openEuler RaspberryPi SIG from [sig-RaspberryPi](htt
   - [Cross-compile the kernel](documents/交叉编译内核.md)
   - [Install openEuler on a SD card](documents/树莓派刷机.md)
   - [How to use Raspberry Pi](documents/树莓派使用.md)
+  - [ChangeLog](documents/changelog.en.md)
 
 ## How to download latest image
 
@@ -35,9 +36,11 @@ Alpha version of openEuler 20.03 LTS image for Raspberry Pi, [download](https://
 
 Basic information of the above image:
 
+- [ChangeLog](documents/changelog.en.md)
 - Release date: 2020-04-27
 - Size: 240 MiB
-- Kernel version number: 4.19.90-2003.4.0.0036
+- OS version: openEuler 20.03 LTS
+- Kernel version: 4.19.90-2003.4.0.0036
 - Firmware source: [firmware](https://github.com/raspberrypi/firmware), [bluez-firmware](https://github.com/RPi-Distro/bluez-firmware), [firmware-nonfree](https://github.com/RPi-Distro/firmware-nonfree)
 - Repository of rootfs: [openEuler-20.03-LTS](http://repo.openeuler.org/openEuler-20.03-LTS/everything/aarch64/)
 - Repository inside the image: [openEuler 20.03 LTS repository](https://gitee.com/openeuler/raspberrypi/blob/master/config/openEuler-20.03-LTS.repo)

README.md

 # raspberrypi
 
-[English](./README.cn.md) | 简体中文
+[English](./README.en.md) | 简体中文
 
 本仓库是 openEuler 社区树莓派 SIG 组的主仓库，提供 SIG 组相关信息以及适用于树莓派的 openEuler 镜像的构建脚本和相关文档：
 
@@ -26,16 +26,20 @@ SIG 组基本信息位于 [sig-RaspberryPi](https://gitee.com/jianminw/community
   - [交叉编译内核](documents/交叉编译内核.md)
   - [树莓派刷机](documents/树莓派刷机.md)
   - [树莓派使用](documents/树莓派使用.md)
+  - [更新日志](documents/changelog.md)
 
 ## 最新镜像
 
-openEuler 20.03 LTS 的内测版本镜像，[下载地址](https://isrc.iscas.ac.cn/EulixOS/repo/dailybuild/1/isos/20200427/openEuler_20200427121211.img.xz)。
+openEuler 20.03 LTS 的内测版本镜像，[下载](https://isrc.iscas.ac.cn/EulixOS/repo/dailybuild/1/isos/20200427/openEuler_20200427121211.img.xz)。
+
 
 该镜像的基本信息：
 
+- [更新日志](documents/changelog.md)
 - 发布时间：2020-04-27
 - 大小：240 MiB
-- 内核版本号：4.19.90-2003.4.0.0036
+- 操作系统版本：openEuler 20.03 LTS
+- 内核版本：4.19.90-2003.4.0.0036
 - 固件来源：[firmware](https://github.com/raspberrypi/firmware)、[bluez-firmware](https://github.com/RPi-Distro/bluez-firmware)、[firmware-nonfree](https://github.com/RPi-Distro/firmware-nonfree)
 - 构建文件系统的源仓库：[openEuler-20.03-LTS](http://repo.openeuler.org/openEuler-20.03-LTS/everything/aarch64/)
 - 镜像内置源仓库：[openEuler 20.03 LTS 源仓库](https://gitee.com/openeuler/raspberrypi/blob/master/config/openEuler-20.03-LTS.repo)

documents/changelog.en.md

+## Feature Release Log
+
+English | [简体中文](./changelog.md)
+
+### 2020-04-27
+
+#### Basic information
+
+- Release date: 2020-04-27
+- Size: 240 MiB
+- OS version: openEuler 20.03 LTS
+- Kernel version: 4.19.90-2003.4.0.0036
+- Firmware source: [firmware](https://github.com/raspberrypi/firmware), [bluez-firmware](https://github.com/RPi-Distro/bluez-firmware), [firmware-nonfree](https://github.com/RPi-Distro/firmware-nonfree)
+- Repository of rootfs: [openEuler-20.03-LTS](http://repo.openeuler.org/openEuler-20.03-LTS/everything/aarch64/)
+- Repository inside the image: [openEuler 20.03 LTS repository](https://gitee.com/openeuler/raspberrypi/blob/master/config/openEuler-20.03-LTS.repo)
+
+#### Updates
+
+##### Default time zone
+
+Set default time zone as CST (UTC+8).
+
+##### Hostname
+
+Set hostname as openEuler.
+
+##### Audio
+
+Enable audio by default.
+
+##### HCI UART protocol Broadcom
+
+Set CONFIG_SERIAL_DEV_CTRL_TTYPORT and CONFIG_BT_HCIUART_BCM as 'y' to compile support for Broadcom protocol. The Broadcom protocol support enables Bluetooth HCI over serial port interface for Broadcom Bluetooth controllers.
+
+### 2020-04-15
+
+#### Basic information
+
+- Release date: 2020-04-15
+- Size: 241 MiB
+- OS version: openEuler 20.03 LTS
+- Kernel version: 4.19.90-2003.4.0.0036
+- Firmware source: [firmware](https://github.com/raspberrypi/firmware), [bluez-firmware](https://github.com/RPi-Distro/bluez-firmware), [firmware-nonfree](https://github.com/RPi-Distro/firmware-nonfree)
+- Repository of rootfs: [openEuler-20.03-LTS](http://repo.openeuler.org/openEuler-20.03-LTS/everything/aarch64/)
+- Repository inside the image: [openEuler 20.03 LTS repository](https://gitee.com/openeuler/raspberrypi/blob/master/config/openEuler-20.03-LTS.repo)
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documents/changelog.md

+## Feature Release Log
+
+[English](./changelog.en.md) | 简体中文
+
+### 2020-04-27
+
+#### 基本信息
+
+- 发布时间：2020-04-27
+- 大小：240 MiB
+- 操作系统版本：openEuler 20.03 LTS
+- 内核版本：4.19.90-2003.4.0.0036
+- 固件来源：[firmware](https://github.com/raspberrypi/firmware)、[bluez-firmware](https://github.com/RPi-Distro/bluez-firmware)、[firmware-nonfree](https://github.com/RPi-Distro/firmware-nonfree)
+- 构建文件系统的源仓库：[openEuler-20.03-LTS](http://repo.openeuler.org/openEuler-20.03-LTS/everything/aarch64/)
+- 镜像内置源仓库：[openEuler 20.03 LTS 源仓库](https://gitee.com/openeuler/raspberrypi/blob/master/config/openEuler-20.03-LTS.repo)
+
+#### 更新说明
+
+##### 默认时区
+
+设置默认时区为中国标准时间 (东八区)。
+
+##### 主机名
+
+设置主机名（hostname）为 openEuler。
+
+##### 音频
+
+默认开启音频。
+
+##### HCI UART protocol Broadcom
+
+设置 CONFIG_SERIAL_DEV_CTRL_TTYPORT 和 CONFIG_BT_HCIUART_BCM 为 'y'，将 Broadcom 协议编译进内核。Broadcom 协议支持为 Broadcom 蓝牙控制器启用基于串行端口接口的 Bluetooth HCI。
+
+### 2020-04-15
+
+#### 基本信息
+
+- 发布时间：2020-04-15
+- 大小：241 MiB
+- 操作系统版本：openEuler 20.03 LTS
+- 内核版本：4.19.90-2003.4.0.0036
+- 固件来源：[firmware](https://github.com/raspberrypi/firmware)、[bluez-firmware](https://github.com/RPi-Distro/bluez-firmware)、[firmware-nonfree](https://github.com/RPi-Distro/firmware-nonfree)
+- 构建文件系统的源仓库：[openEuler-20.03-LTS](http://repo.openeuler.org/openEuler-20.03-LTS/everything/aarch64/)
+- 镜像内置源仓库：[openEuler 20.03 LTS 源仓库](https://gitee.com/openeuler/raspberrypi/blob/master/config/openEuler-20.03-LTS.repo)
\ No newline at end of file