Contradiction in gf-docs/Spec/README.md?

[thlinard]

Family already exists on Google Fonts
(…)

• Every style that was already available on Google Fonts must be included as an fvar instance

and:

At the moment (2020-06-30), Google Fonts only allows the following named instances:
(…)
We only allow weight and italic particles.

The contradiction between the two should be resolved: specify the second statement is not valid when the "Family already exists on Google Fonts", for example.

[m4rc1e]

Thanks Thomas!