Suggestions to facilitate contributions on this repository

[bzg]

In the context of Etalab helping the 10% projects to become more collaborative, here are some suggestions:

• Add a CONTRIBUTING section to the README.md: explain who can contribute and for what (it is not necessary to provide a dedicated CONTRIBUTING.md file).
• Add a LICENSE section to the README.md.
• Add more tags to the GitHub page.
• Enhance the GitHub description of the project: the current pointer to an external URL does not allow to quickly understand what this repo is about.

[linogaliana]

Thanks @bzg for the suggestions. I will add them to the roadmap of the most urgent things to to

[bzg]

Thanks! Let me know if I can help somehow.