First of all, if you are reading this page, it means you would like to contribute to our library. We are very happy to welcome you among the contributors of escnn! :D
To contribute to escnn, you can just open an issue (and I will try to solve it as soon as I can) or you can create a pull-request proposing your own solution or some new feature. If you want to open a pull-request, please read the section below about DCO.
When you create a pull-request, you need to agree to the license of our library and certify that you wrote the code (or have the rights to contribute with that code). This is the Developer Certificate of Origin (DCO), which is described in more details here. Please, read that page before opening a pull-request.
In practice, this means you need to sign-off all your commits by adding the following line to the commit messages:
Your commit message.
Signed-off-by: Your Name And Surname <your@email.com>
Git also has a -s option to automatically add this line in you commits.
Again, check this page for more details.
Note also that, when you create a pull-request, Github automatically checks if all your commits are signed, so you can check if some commit misses the signature directly in the pull-request page.