Linking to unique cultural content

#1

From @RachaelKotarski on Tue Aug 21 2018 12:18:46 GMT+0000 (UTC)

As a cultural institution or library, I want to enable links to our unique content from external sources where those are mentioned and discussed, e.g. wikipedia, news items, blogs, research outputs.

Copied from original issue: https://github.com/datacite/freya/issues/78