* welcome to all kind of contribute

* add email

fix: room mention contact should using roomAlias https://github.com/Chatie/wechaty/issues/1604 (#1607)

* fix: change room say function mention contact roomAlias not name
refer issue: https://github.com/Chatie/wechaty/issues/1604

* change getRoomAlias() to promise.all() and remove getRoomAlias()

* re-deal with null promise array

* 0.23.14

* clean code

* chore(package): update @babel/core to version 7.0.1

* chore(package): update @babel/node to version 7.0.0

* chore(package): update @babel/preset-env to version 7.0.0

* update readme doc

* add the methods' doc link

add most methods' doc link and change RoomInvitation `topic`  to `roomTopic`

validate the puppet provider name from options/environment variables https://github.com/Chatie/wechaty-getting-started/issues/57