Nettariff API v1.0.1 - bugfix
Bugfix in DiginGridTariffAPI.v1_0.json:
Added Product(for internal grid company use) as input to tariffquery.
Changed TariffKey to be non-required.
Description updated for TariffKey and Product: "Exclusive OR with TariffKey/Product".
README.md: Added chapter "11. Endringslogg"