To me it looks like a riboflavin deficiency. I would get some human vitamin B complex tablets and add 1/4 tablet daily to some egg or her feed. Some use liquid baby vitamins 3 drops daily. The earlier it is treated, the better the chances of recovery. Chick shoes made from tape can be used to straighten out the toes. If her legs seem to be spaced wide or more than 1 1/2 inches apart, you may also use a leg hobble to vring them closer for about 5 days. Here is a good link about splay leg and hobbles:
https://www.fresheggsdaily.com/2012/04/spraddle-leg.html
https://www.fresheggsdaily.com/2012/04/spraddle-leg.html