CMS: DOI for the csv record

[katilp]

We probably need to add DOI for http://opendata.cern.ch/record/545 (csv files) to be in line with the citation instructions in http://opendata.cern.ch/about

[ArtemisLav]

@katilp Is this still needed?

[katilp]

@hemmlin and @JuhaTeuho will work on completing the variable description for the different csv datasets that we have around and check which ones e.g. from https://cms-docdb.cern.ch/cgi-bin/PublicDocDB/ListBy?authorid=3631 are not in the portal.

That may bring some changes to record 545 so we may want to see for the DOI later.