add version to license names

[phivk]

as specified by https://spdx.org/licenses

just a simple PR to test our workflow :)

[phivk]

Thanks for the feedback!

I think the best option is the make it resemble the list of the CC license chooser at https://chooser-beta.creativecommons.org/ which is linked in the help button in the PeerTube user interface on upload.

for the record:

I've updated the spreadsheet with all info to be included, could you check this is in line with what you'd expect? https://docs.google.com/spreadsheets/d/1vrIqS4GAyLRxDD1WH5FdQ9yvqFt2g9pmESqQBFYcU8Q/edit#gid=0

[frankstrater]

Merged this change to master from a different branch.