Multi-step forms created with vue and vuex

Hi guys, I've started learning vue and vuex at first glance decided to make multi-step forms. In order to better understand vuex, I decided to keep most of my stuff in stock, that's why it looks like this. All suggestions and tips on what to improve or read more are welcome. I also didn't know how to run github-pages so that it would load files on one repository, so the preview of the solution is in another :( regards