add link to metadata documentation
it should be visible here: https://docs.softwareheritage.org/devel/swh-deposit/index.html
Migrated from T837 (view on Phabricator)
Staging instance, all changes can be removed at any time
it should be visible here: https://docs.softwareheritage.org/devel/swh-deposit/index.html
Migrated from T837 (view on Phabricator)