We are not currently updating the code with contributions, partly because I do not have much time and I am not good at managing contributions.
However, if you do make a change and are burning to add it to Docs to Markdown, I will try to find the time to take a look at it. Even if we do not use your exact code, we will credit you as a contributor.
All submissions, including submissions by project members, require review. We use GitHub pull requests for this purpose. Consult GitHub Help for more information on using pull requests.
This project follows Google's Open Source Community Guidelines.
See the developer guidelines (dev.md).