Hi,

if you want to contribute to our first draft version, you can:
- comment on the issues: https://github.com/carbon-data-specification/Power-Systems-Data/issues
- participate in the associated pull requests that propose concrete changes to fix theses issues: https://github.com/carbon-data-specification/Power-Systems-Data/pulls
- open new pull requests addressing existing or new issues

Cheers
Markus