Please- injured baby bunny, Any advice?

First of, you are freakin awesome! But if he/she gets use to being with you she might not make it when you set her free. Make sure its getting a lot of water are fresh foods! The wound should heal fine. They usually do. Just watch it for any infection. And keep it clean but let it heal too dont overkill on cleaning. good luck and thanks for taking time to care for it!