After the initial discussion is finished, the Google doc can be converted to the [Github-flavored] Markdown and stored in the [Github] repo.
It would be a good idea to create an initial GDoc based on the markdown template from the repo.
Frankly with the speed of Github innovation, they will be adding GDoc-like commenting and collaboration soon.
Not sure how it can be integrated with git branches though.
After the initial discussion is finished, the Google doc can be converted to the [Github-flavored] Markdown and stored in the [Github] repo.
It would be a good idea to create an initial GDoc based on the markdown template from the repo.
Frankly with the speed of Github innovation, they will be adding GDoc-like commenting and collaboration soon.
Not sure how it can be integrated with git branches though.