Creating an Issue
If you found an issue or maybe you like to propose a new feature to the project, you need to access the following link:
Please review the guidelines for contributing to Drupal Console at:
Creating a Pull Request
Remember to create a branch before start developing! It's name should contain the issue id and a slug to tell what the thing you're working on is about, for example:
If you haven't yet contributed to a project on GitHub, or aren't still sure what the workflow looks like, read the documentation about pull requests. You may also wish to download the GitHub application (Mac | Windows, which simplifies the workflow a bit and provides a nice GUI for your contributions).