docs: optimize features

Author: chouchouji

README.md

@@ -23,6 +23,7 @@
 - 📝  Support setting description for every alias
 - 🔧  Support custom path that used to store aliases
 - 🌍  Support internationalization
+- 📚  Support data export and import
 
 ## TIP
 

README.zh-CN.md

@@ -23,6 +23,7 @@
 - 📝  支持为别名添加备注
 - 🔧  支持自定义存储别名的路径
 - 🌍  支持国际化
+- 📚  支持数据导入和导出
 
 ## 提示