So one needs a _index.it.md and _index.jp.md etc for each language. all right. That works fine. Thanks
OK so what about such things as menu items or in the example case summary
[languages.it.translations]
summary = "Mio blog"
# translations for the default language are not prefixed by languages.code
[translations]
summary = "My blog"
In the template, none of the following function as expected