Fix on_ref_press documentation
Fix on_ref_press documentation

Closes #7037

akshayaurora/kivy,matham/kivy,kivy/kivy,matham/kivy,matham/kivy,rnixx/kivy,rnixx/kivy,matham/kivy,kivy/kivy,akshayaurora/kivy,rnixx/kivy,kivy/kivy,akshayaurora/kivy