Update for coverage date (DataCite 4.6)

[borsna]

Currently in the example on page 18:

<dates>
  <date dateType="Created">2016</date>
  <date
    dateType="Other"
    dateInformation="coverage">
    2050-09-01T00:00:00+01:00/2050-09-30T23:59:59+01:00
  </date>
</dates>

In DataCite 4.6 a new type is added for Coverage:
https://datacite-metadata-schema.readthedocs.io/en/4.6/appendices/appendix-1/dateType/#coverage

So intead of using Other the recommendation should be Coverage (and perhaps skip dateInformation?)

<dates>
  <date dateType="Created">2016</date>
  <date
    dateType="Coverage"
    dateInformation="coverage">
    2050-09-01T00:00:00+01:00/2050-09-30T23:59:59+01:00
  </date>
</dates>