When we hatched with a broody, lots of people had all different experiances. From horror stories, to easy peasy. Our experiance was awesome, easy, and a thrill to watch the mama teach the babies about life.
We put crumble in the food container for a month. Mama showed the babies where the food was (we made sure the chicks could reach the food), and the rest is history. Our mama showed the chicks where everything they need was. She would protect them, and also keep them warm. We really didnt do anything different.
Only twice did we have to interveen and help the chicks. Both times they fell down from the nesting box in the first week. And I put wood as a makeshift ladder so they could hop up back into the nesting box where mama sat.
We loved hatching with our mama. Just keep an eye on her, and what she is doing with them. If she shows signs of care, things will be great. If she shows signs of harm, then be careful, and get a heat lamp, and remove them from her.
We must have asked about 6 different friends who have done it, and all but one had great experiances with hatching with a broody : )
Hope this helps, and isnt to late.