add a Contributing, Code of Conduct and Security documents

[shravanngoswamii]

Yes, it's possible to have a organization wide guides, I can't find any official github docs source mentioning this, I am sure I read this somewhere few months back. I am unable to find that right now. But I found the example:

P4 Language (I haven't heard of before) have CONTRIBUTING.md in .github repo and it appears in all the repos which does have there own CONTRIBUTING.md, see: https://github.com/p4lang/p4mlir-incubator?tab=contributing-ov-file

Same applies to Code of Conduct and Security documents

[penelopeysm]

Thanks! This all reads well, I have some minor comments.

Just so that I'm aware: where is this text taken from (or did you write it yourself)?

[shravanngoswamii]

Just so that I'm aware: where is this text taken from (or did you write it yourself)?

It's a mix of many source, gumroad, llvm, SciML, and many more...
Code of Conduct is from https://policies.python.org/python.org/code-of-conduct/, https://www.debian.org/code_of_conduct, https://www.djangoproject.com/conduct/, https://rust-lang.org/policies/code-of-conduct/, https://www.apache.org/foundation/policies/conduct, https://julialang.org/community/standards/

Overall, it's not totally my wording, picked sentences from many sources and reworded them here.

And for Security, we should provide guides from https://github.com/JuliaLang/SecurityAdvisories.jl but it's not stable yet so let's wait few months to add that

[penelopeysm]

I'm happy with the current state. I think it's worth considering whether it should also somehow be on the contributing section of the docs page but that's ofc in a different repo

[shravanngoswamii]

I think it's worth considering whether it should also somehow be on the contributing section of the docs page but that's ofc in a different repo

Ahmm, that's already very well written, thanks to you! Is this even required there anymore? This is general org wide repo scope guide for usually external contributors, right?

[penelopeysm]

The docs site is also for external contributors! I think there are portions that should probably be repeated, especially the bits on AI usage, which the docs site doesn't say anything about. But it's true, some of the content might be repeated.