Contribution section in the docs

[zaaakher]

I'm in love with Spacedive. Thank you guys for everything. ♥

I suggest adding a contribution section in the docs to guide us through how to contribute with code, ui, general design, translations, etc.

[HeavenVolkoff]

Hi, thank you for the interest in Spacedrive. We currently have contributing docs here and here. They are not perfect, but should get you up to a point to be able to implement a bugfix or some simple new feature, if you have any question or think something is missing from them feel free to open an issue.