I am sorry this has happened
Can you tell me how much bleach and how much water was in the mixture.
it was a qurter gallon buket and it was full half way with 3 cap full of bleach
You did great by rinsing her mouth and giving the bread.
This is not enough to do any harm. Your girl should be fine. You can give a small amount of milk 3-4 tablespoons to help coat the stomach.
You may see some signs of upset stomach or diarrhea but other then that I would not expect to see any negative reactions form this.
I hope this has helped ease your mind