Make a foundation for collaboration on the project

[HamedBabaei]

• How to submit code to the github
• How to make sure codes are clean and well documented (pre-commit)
• branch policies - explanation on the readme.

[HamedBabaei]

Hey @aioaneia, I just added the readme with contributing guidelines. Please don't hesitate to check during your development. I might keep branch policies for later based on the type of our work, in which we can discuss it one one of our meetings before setting the policy for it.

[aioaneia]

Thank you @HamedBabaei.