Merge pull request #83 from flipped-aurora/gin-vue-admin_v2_dev

Add project layout to README.

README-zh_CN.md

@@ -151,6 +151,7 @@ swag init
 
 ![前端详细设计图](http://qmplusimg.henrongyi.top/naotu.png)
 
+### 4.3 目录结构
 
 ```
     ├─server  	     （后端文件夹）

README.md

@@ -152,6 +152,7 @@ After executing the above command，`docs` will show in `server/`，then open yo
 
 ![Front-end Detailed Design Diagram](http://qmplusimg.henrongyi.top/naotu.png)
 
+### 4.3 Project Layout
 
 ```
     ├─server  	     （backend）