update readme

README.md

@@ -58,6 +58,8 @@ Take a look inside the [`exampleSite`](https://github.com/nodejh/hugo-theme-cact
 
 To use it, copy the [`config.toml`](https://github.com/nodejh/hugo-theme-cactus-plus/blob/master/exampleSite/config.toml) in the root folder of your Hugo site. Feel free to change strings as you like to customize your website.
 
+And you may replace your site `archetypes/default.md` with [`hugo-theme-cactus-plus/exampleSite/archetypes/default.md`](https://github.com/nodejh/hugo-theme-cactus-plus/tree/master/exampleSite/archetypes/default.md)
+
 For more information read the official [setup guide](//gohugo.io/overview/installing/) of Hugo.
 
 ## Example Site

README_zh-cn.md

@@ -60,6 +60,8 @@ $ git clone https://github.com/nodejh/hugo-theme-cactus-plus.git
 
 配置文件中对大部分配置都有详细的注释说明，复制该文件到站点目录下，根据自己的情况修改即可。
 
+然后可能你还需要用 [`hugo-theme-cactus-plus/exampleSite/archetypes/default.md`](https://github.com/nodejh/hugo-theme-cactus-plus/tree/master/exampleSite/archetypes/default.md) 替换你的项目中的 `archetypes/default.md`。
+
 更多安装信息查看 Hugo 官方文档 [setup guide](//gohugo.io/overview/installing/)。
 
 ## 示例站点