Documentation for new version missing.

[dotmot]

Upgrading from v2 to v3 took me a minute,
there are some breaking changes, the migration, the trait
and even the property filesAttributes seems to be different.
Nothing wrong, great work, but would make it easier to migrate
with a little more info somewhere more visible, had to look for
the commits to find the changes.
Maybe in the release notes?

Again love the package ❤️