update readme

README.md

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-# Arduino Core for Kendryte K210
-## Windows
-### 1.首选项添加下列地址 然后打开开发版管理器下载开发包
->https://bigbits.oss-cn-qingdao.aliyuncs.com/Arduino_for_k210/package_k210_index.json
-### 2.安装好之后添加工具链目录到PATH环境变量
->C:\Users\\**(username)**\AppData\Local\Arduino15\packages\Kenduino\tools\riscv64-unknown-elf-gcc\8.2.0\bin
-### 3.安装[.Net core runtime](https://download.visualstudio.microsoft.com/download/pr/3f05ee2d-5372-43d6-9562-be86632a53d4/1361281426efa7ff206289adb0411f55/dotnet-runtime-3.0.0-preview3-27503-5-win-x64.exe)
-### 4.开发板选择Sipeed M1 Board 编程器选 k-flash
-### 5.连接开发板选对应的串口号
-### 6.编写程序 编译 上传 完成
-----
-## Ubuntu
-### 1.首选项添加下列地址 然后打开开发版管理器下载开发包
->https://bigbits.oss-cn-qingdao.aliyuncs.com/Arduino_for_k210/package_k210_index.json
-### 2.需要解决usb串口访问权限
->sudo usermode -a -G dialout **(username)**
-### 3.安装pyserial
->pip3 install pyserial
-### 4.开发板选择Sipeed M1 Board 编程器选 k-flash
-### 5.连接开发板选对应的串口号
-### 6.编写程序 编译 上传 完成
-----
-## Windows
-### 1.Add the following address to the **Preferences** and open the **Boards Manager** to download the development kit.
->https://bigbits.oss-cn-qingdao.aliyuncs.com/Arduino_for_k210/package_k210_index.json
-### 2.Add the toolchain directory to the PATH environment variable after installation.
->C:\Users\\**(username)**\AppData\Local\Arduino15\packages\Kenduino\tools\riscv64-unknown-elf-gcc\8.2.0\bin
-### 3.Install [.Net core runtime](https://download.visualstudio.microsoft.com/download/pr/3f05ee2d-5372-43d6-9562-be86632a53d4/1361281426efa7ff206289adb0411f55/dotnet-runtime-3.0.0-preview3-27503-5-win-x64.exe)
-### 4.Board selects Sipeed M1 Board & Programmer to choose k-flash.
-### 5.Connect the development board and then choose the serial port.
-### 6.Now you can write the Arduino code and upload it to the k210 board.
-----
-## Ubuntu
-### 1.Add the following address to the **Preferences** and open the **Boards Manager** to download the development kit.
->https://bigbits.oss-cn-qingdao.aliyuncs.com/Arduino_for_k210/package_k210_index.json
-### 2.Enter the following command in the terminal to solve the problem of usb serial port access rights.
->sudo usermode -a -G dialout **(username)**
-### 3.Install pyserial
->pip3 install pyserial
-### 4.Board selects Sipeed M1 Board & Programmer to choose k-flash.
-### 5.Connect the development board and then choose the serial port.
-### 6.Now you can write the Arduino code and upload it to the k210 board.
-----
+Maixduino
+========
+
+Arduino core for Maix Board (K210)
+
+
+## Docs
+
+Docs: [maixduino.sipeed.com](https://maixduino.sipeed.com/)
+
+
+
+## Other SDK
+
+If you want to code by scripts, refer to our [MaixPy](https://maixpy.sipeed.com)
+
+
+
+