Your little chickie has "Spraddle Leg". It can be cured. You need to get three little bandaids. Wrap one around each leg at about the hock joint with the pad of the bandaid around the leg and the sticky parts together to form a tab. Take the third bandaid and cut the two sticky tabs off. pull the leg tabs together so you have about 1 inch between the legs. Use the two sticky bandaid pieces that you cut off as tape to hold the tabs together. Leave this on the chick for 24 hours. Take the brace off and see how the legs are doing. If not corrected yet, repeat the process. Normally onle takes 1 or 2 days to correct. Make sure the little chickie is not getting picked on by the others. They will learn how to walk with it on but make sure that it can get to food and water.
Good luck and keep us posted