已经做好了archive的操作示例
Revert "已经做好了archive的操作示例"

This reverts commit 158b14462136f4634ba8d0716814c0bc0cc4db85.
Merge branch 'master' of https://github.com/Unknwon/gopkg
update
Update todo.md
Merge pull request #18 from Unknwon/master

更新todo.md