Document that @screen-*-min were replaced by $grid-breakpoints #17593
Description
The new $screen-{xs,sm,md,lg,xl}-min variables don't exist. See http://v4-alpha.getbootstrap.com/migration/#responsive-utilities
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The new $screen-{xs,sm,md,lg,xl}-min variables don't exist. See http://v4-alpha.getbootstrap.com/migration/#responsive-utilities