Snapcraft contribution guidelines

Hello, Snapcrafters!

We’ve overhauled the guidelines for contributing to Snapcraft itself.

We’re keeping the guide in a single location, where it will be readily available as you code – the project’s CONTRIBUTING.md file.

It covers feature contributions and the new documentation contributions.

It also explains our new bounty program, so be sure to check it out if you’re interested in rewarding challenges.

We appreciate your support. If you find any errors in the mechanics of the guidance, please let us know. You could be very meta and use the guide itself to create an issue about the guide.

Thanks!