docs: create contribution.md file

[NoamGaash]

Description

close #194

[github-actions]

Preview: https://s3.amazonaws.com/noam-gaash.co.il/7240890839/open-bus/a22f1bcf8180fe4da50a7c48fbfebde45e2a08c3/index.html
Preview Storybook: https://s3.amazonaws.com/noam-gaash.co.il/7240890839/open-bus/a22f1bcf8180fe4da50a7c48fbfebde45e2a08c3/storybook/index.html

[amabelleS]

Maybe we should also include somthing like this:

How should I write my commits?

link to the Git Commit Guidelines

I don't know how much it's relevant to #320
It could be in another issue.

[shootermv]

@amabelleS you totally right -
commit messages convention it is something that should be in the contribution guide
one more point worth to add to the guide - how to keep history clean when merging (or - how to merge PRs)

This will help a lot to new contributors, how to keep history clean when merging. I'm afraid I'm not following any conventions now, and will love to learn best practices as well:)

[NoamGaash]

@amabelleS @shootermv I won't do it in this PR.
If you don't approve this, let's close it and delete that branch.

I totally approve of this PR, great contribution:) Sorry I was not clear, it was just my way of saying, that maybe we need to add this too, not sure if and where.

[shootermv]

@NoamGaash of course, i didnt mean everything should be in the same Pr