Is your feature request related to a problem? Please describe.
I'm just looking for Thermal Foundation ores to be supported in the mining dimension.

Describe the solution you'd like
I'd like to seem them supported natively but if not, I'd like to know how to add them via datapack. Detailed instructions or specific examples greatly appreciated.

Describe alternatives you've considered
I've attempted to add them copying syntax from your datapack examples but haven't been able to get them to generate at all.

Additional context
Perhaps the simplest solution would be an example of how to add a modded ore via the datapack tutorial.

Just take the more ores datapack as an example.
There are also plenty tutorials on how to make a datapack online.