typo on the kinetics families page

`intra_halogen_migration` has its training reactions listed as `intra_H_migration` for some reason. Looks like it's just a typo and not pulling from the actual `intra_H_migration` training set.

<img width="1765" height="490" alt="Image" src="https://github.com/user-attachments/assets/a7f7481a-85b8-4ae3-8b36-7ead5c292682" />