Add Data Sharing Policy guidance

[amandatombolatoardc]

4.2 Data sharing policy does not include the guidance on the data sharing statement.

Current guidance can be found here: https://docs.google.com/document/d/1bUsMdhCt94vZmVZYx54msitxNuy-BBSjqmi2Z84OCIA/edit#heading=h.phrh9u7r2pcf

[amandatombolatoardc]

This should be included/linked to in the metadata profile. Unless if they're expressing it as DUO. It should be public on their website with their logo. Makes it clear/transparent how they share their data.
Matthias recommends that the Expertise team should design guidance, not project team.