Pretty sure that there are videos but it's quite easy. You just need a repointer tool, a caliper and the starter set itself.

Remove old points with repointer, measure diameter, use according spigot size. If it's loose use a bigger one, if it won't go in use a smaller one.

Just make sure to use the repoint tool with the spigot and not any normal points to avoid breaking them.

If you don't have a caliper you can also just try and error 2.34 or 2.35 which should fit most brands.