FAQ: update attribute `slot-scope` for Vue 2.5.0+
FAQ: update attribute `slot-scope` for Vue 2.5.0+

Leopoldthecoder/element-1,baiyaaaaa/element,Leopoldthecoder/element-1,ElemeFE/element,baiyaaaaa/element,ElemeFE/element,Raganof/element,Raganof/element,Kingwl/element,huguangju/element,Kingwl/element,huguangju/element