On both this and the Content License below, please check that the codes correspond to the adjusted codes in the questionnaires as in https://github.com/theodi/open-data-certificate/commit/2485a5c7cc00ff3f6b3d083dd0909e270cc14ed5, namely:

 - [ ] odc_by_sa -> odc_odbl
 - [ ] pddl -> odc_pddl
 - [ ] cc0 -> cc_zero
 - [ ] ogl -> uk_ogl