diff --git a/.editorconfig b/.editorconfig
deleted file mode 100644
index 2644228..0000000
--- a/.editorconfig
+++ /dev/null
@@ -1,11 +0,0 @@
-# top-most EditorConfig file
-root = true
-
-# all files
-[*]
-indent_style = tab
-indent_size = 4
-end_of_line = lf
-charset = utf-8
-trim_trailing_whitespace = true
-insert_final_newline = true
diff --git a/.github/workflows/project.yml b/.github/workflows/demo.yml
similarity index 99%
rename from .github/workflows/project.yml
rename to .github/workflows/demo.yml
index 66ca138..2876664 100644
--- a/.github/workflows/project.yml
+++ b/.github/workflows/demo.yml
@@ -1,4 +1,4 @@
-name: project
+name: demo
 
 on:
   push:
diff --git a/README.md b/README.md
index 1497141..7c1af28 100644
--- a/README.md
+++ b/README.md
@@ -1,19 +1,19 @@
-# [CH552](https://docs.soc.xin/CH552)
+# [CH552](https://doc.soc.xin/CH552)
 
-[![Build Status](https://github.com/SoCXin/CH552/workflows/project/badge.svg)](https://github.com/SoCXin/CH552/actions/workflows/project.yml)
+[![Build Status](https://github.com/SoCXin/CH552/workflows/demo/badge.svg)](https://github.com/SoCXin/CH552/actions/workflows/demo.yml)
 [![Build Status](https://github.com/SoCXin/CH552/workflows/src/badge.svg)](https://github.com/SoCXin/CH552/actions/workflows/src.yml)
 
 * [WCH](http://www.wch.cn/)：[E8051](https://github.com/SoCXin/8051)
 * [L1R1](https://github.com/SoCXin/Level)：24 MHz
 
 
-## [简介](https://docs.soc.xin/CH552)
+## [简介](https://doc.soc.xin/CH552)
 
 [CH552](https://github.com/SoCXin/CH552) 兼容MCS51的增强型E8051内核，79%指令是单字节单周期指令，2KB BootLoader + 14KB Flash，1K xRAM(支持DMA) +256B iRAM，128B DataFlash。
 
 内置24MHz时钟源和PLL，内置了ADC模数转换、触摸按键电容检测、3组定时器和信号捕捉及PWM、双异步串口、SPI、USB设备控制器和全速收发器、USB type-C等功能模块。
 
-[![sites](docs/CH552.png)](http://www.wch.cn/products/CH552.html)
+
 #### 关键特性
 
 * 5V->3.3V LDO
diff --git a/docs/CH552.png b/docs/CH552.png
deleted file mode 100644
index 10fc291..0000000
Binary files a/docs/CH552.png and /dev/null differ