We're glad that you're interested in making cargo-ghp-upload better!
That can take the form of just reporting bugs or sending PRs with changes.
We appreciate both, and will see to it that your contribution is seen & acted upon.
All additions to the code go through GitHub PRs. By using Bors, we know that none of them will break our build. See the Bors docs for more about how to use Bors.
We have an official Code of Conduct, but it boils down to: Be Nice. Be courtious to others' thought process, which is different from yours. Everyone has their own priorities and opinions.