docs(datepicker): update to latest usage
docs(datepicker): update to latest usage

Closes #5539

BookingBug/bootstrap,RobJacobs/bootstrap,byronigoe/bootstrap,mabi/bootstrap,christor/bootstrap,Foxandxss/bootstrap,wesleycho/bootstrap,benhalverson/bootstrap,caoruiy/bootstrap,shootermv/bootstrap,shootermv/bootstrap,christor/bootstrap,infowrap/bootstrap,vfiles/bootstrap,benhalverson/bootstrap,mabi/bootstrap,Servoy/bootstrap,byronigoe/bootstrap,292388900/bootstrap,icfantv/bootstrap,benhalverson/bootstrap,Foxandxss/bootstrap,RobJacobs/bootstrap,benhalverson/bootstrap,BookingBug/bootstrap,vfiles/bootstrap,Kpler/bootstrap,Servoy/bootstrap,wesleycho/bootstrap,fpipita/bootstrap,looker/bootstrap,fpipita/bootstrap,angular-ui/bootstrap,292388900/bootstrap,angular-ui/bootstrap,looker/bootstrap,Kpler/bootstrap,caoruiy/bootstrap,infowrap/bootstrap,icfantv/bootstrap