Jiyong Park

This is a follow-up of #300. - Fix KO translation for the index - Fix KO translation for the following introductory parts:

wait-for-disconnect and then wait-for-device

3

Previously, right after we do `adb reboot`, we immediately executed `adb wait-for-device`. This is problematic because the device may still be in the process of shutting down (shutdown itself is...