I made a CSV. Name: 'nl_NL.csv'
Content: You added %1 to your shopping cart.,U heeft %1 aan uw winkelwagen toegevoegd.
That as what I want to Translate in Dutch as it is not in the standard language package.
I have put this 'nl_NL.csv' in /public_html/app/design/frontend/developer/mythem/i18n
I ran - php bin/magento setup:static-content:deploy nl_NL -f - php bin/magento cache:clean - php bin/magento cache:flush
Still in English.... Rest of the site is Dutch, that is also the setting in backend.
Please advise if you know what I'm doing wrong.