rename repository name

[huan]

now it's https://github.com/lijiarui/Getting-Started-with-Wechaty---Live-Coding-Tutorial

should be renamed to https://github.com/lijiarui/wechaty-getting-started

later we can move this repository to /wechaty/wechaty-getting-started

[lijiarui]

done