Production descriptions.

We have very few productions defined, but already now it is hard to see the differences.

What is the difference between 6.0.0, 6.1.0, 6.2.0?

We obviously have the merge requests, but it is hard to go back.

My suggestion is to introduce a metadata file for each production with some minimum information. This should include a one-sentence description (e.g. "High-NSB variant of 6.0.0" or whatever). During operations, this can be replaced by an automatic process simple writing 'Production for 4.7.2042'. I think this approach would make everything more human readable.

Ok to add a metadata file? I would draft a suggestion.