Update cookie cutter template with new badges

[cwmeijer]

Link to fair-software.nl and to github repo in nlesc/template.
See NLeSC/boatswain#14 or https://github.com/DeepRank/PSSMGen for example.

[cwmeijer]

Generalization team is planning to work on this within the coming weeks.

[jspaaks]

PR #54