This looks great.
I suggest trying the community-kit from the GH learning lab which can guide you on how to make a welcoming repo.
That pushed me into tailoring a template one (just for JS but it can be converted to other languages) which can be found here: github.com/Berkmann18/TemplateJS.
This alongside tools like Codacy, TravisCI, Better Code Hub (BCH) and what I learnt from going through the GH learning thing made all my more recent repos more informative and clearer (although, almost all of them are still solo so feel free to criticise them).
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