I would advise against this approach. When jaundice is a problem, you want to increase the volume of the baby's intake. The best way to do this is to offer both breasts at a feeding. If your baby isn't too sleepy, you want to allow her to spend unrestricted time on the first breast- which will give her plenty of time to "reach" the creamier milk that is released as the breast gets emptied (a.k.a. the hindmilk)- and when she finishes the first breast, offer the second as a sort of dessert. If she takes it, awesome. If not, no worries.I explained to her that I had been making sure she gets more hindmilk by nursing from only one breast and/or pumping a little before feeding.
If your baby is particularly sleepy, you may need to be a little more proactive about keeping her alert and feeding when she is at the breast. How would you rate her sleepiness? Is she dozing off very quickly? Or does she stay awake for a nice long time, with lots of active sucking and swallowing?
ETA: Definitely take the sunny window suggestion from the PP! UV light is nature's biliblanket. If the weather is nice, take your LO out and put her in the sunshine for about 20 minutes, with no sunblock. The window approach is good if the weather is cold, but glass does block a fraction of UV light and that's not what you want.