Update README
Update README

* No need to find the booted device
truveris/WebDriverAgent,tobecrazy/WebDriverAgent,Jonahss/WebDriverAgent,truveris/WebDriverAgent,zenzhu/WebDriverAgent,PiranhaTeam/WebDriverAgent,rafael-chavez/WebDriverAgent,drptbl/WebDriverAgent,truveris/WebDriverAgent,artemevvfb/WebDriverAgent,qa-dev/WebDriverAgent,Jonahss/WebDriverAgent,b1ueshad0w/WebDriverAgent,riccoyu/WebDriverAgent,Gogle/WebDriverAgent,Gogle/WebDriverAgent,calabash/WebDriverAgent,mtxs007/WebDriverAgent,b1ueshad0w/WebDriverAgent,ymin/WebDriverAgent,luisxiaomai/WebDriverAgent,ymin/WebDriverAgent,zenzhu/WebDriverAgent,b1ueshad0w/WebDriverAgent,PiranhaTeam/WebDriverAgent,qa-dev/WebDriverAgent,tobecrazy/WebDriverAgent,luisxiaomai/WebDriverAgent,mtxs007/WebDriverAgent,zenzhu/WebDriverAgent,luisxiaomai/WebDriverAgent,truveris/WebDriverAgent,drptbl/WebDriverAgent,Jonahss/WebDriverAgent,riccoyu/WebDriverAgent,qa-dev/WebDriverAgent,Jonahss/WebDriverAgent,rafael-chavez/WebDriverAgent,riccoyu/WebDriverAgent,artemevvfb/WebDriverAgent,artemevvfb/WebDriverAgent,PiranhaTeam/WebDriverAgent,besarthoxhaj/WebDriverAgent,mtxs007/WebDriverAgent,mtxs007/WebDriverAgent,Gogle/WebDriverAgent,Gogle/WebDriverAgent,tobecrazy/WebDriverAgent,truveris/WebDriverAgent,Jonahss/WebDriverAgent,rafael-chavez/WebDriverAgent,tobecrazy/WebDriverAgent,ymin/WebDriverAgent,PiranhaTeam/WebDriverAgent,besarthoxhaj/WebDriverAgent,qa-dev/WebDriverAgent,calabash/WebDriverAgent,calabash/WebDriverAgent,tobecrazy/WebDriverAgent,b1ueshad0w/WebDriverAgent,ymin/WebDriverAgent,drptbl/WebDriverAgent,riccoyu/WebDriverAgent,PiranhaTeam/WebDriverAgent,luisxiaomai/WebDriverAgent,besarthoxhaj/WebDriverAgent,mtxs007/WebDriverAgent,luisxiaomai/WebDriverAgent