Add a note about humanMoment not being for animation durations
requested to merge leinir/kirigami:add-note-about-humanmoment-not-being-for-animationswq into master
This adds in an explicit note to say that the humanMoment unit should not be used to determine the duration of an animation, but rather it should be used to determine when something has taken long enough that the user should expect some kind of feedback. This came up on another MR(1), and it seemed prudent to add an explicit note (rather than trusting the implications of the brief to be sufficient discouragement).