diff --git a/README.md b/README.md
index 01d2af9..f9d6d31 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,7 @@
 
 - ✨ Convenient and easy to use
 - 🦾 Full TypeScript support
+-	💯 100% test coverage
 
 ## Install
 
@@ -45,6 +46,10 @@ console.log(VALUES); // ['VALUE_1', 'VALUE_2', 'VALUE_3']
 // ...
 ```
 
+<p align="center">
+  <img src="./docs/public/demo.png" width="500px" />
+</p>
+
 ## API
 
 ```typescript
diff --git a/README.zh-CN.md b/README.zh-CN.md
index 8efcad2..bfacd75 100644
--- a/README.zh-CN.md
+++ b/README.zh-CN.md
@@ -1,5 +1,7 @@
+<p align="center">
+  <img src="./docs/public/logo.png" width="300px" />
+</p>
 <h1 align="center">constant-sage</h1>
-
 <p align="center">constant-sage可以通过你定义的常量字典，生成类型完善的各种常用的
 数据结构</p>
 
@@ -7,6 +9,7 @@
 
 - ✨ 方便便捷
 - 🦾 完善的 TypeScript 支持
+-	💯 100% 单元测试覆盖
 
 ## Install
 
@@ -37,6 +40,10 @@ console.log(VALUES); // ['VALUE_1', 'VALUE_2', 'VALUE_3']
 // ...
 ```
 
+<p align="center">
+  <img src="./docs/public/demo.png" width="500px" />
+</p>
+
 ## API
 
 ```typescript
diff --git a/docs/public/demo.png b/docs/public/demo.png
new file mode 100644
index 0000000..c24ef71
Binary files /dev/null and b/docs/public/demo.png differ