Add Contributing Guidelines and Open Discussions Section

[yarscript]

Hi, guys

Thank you for your work on this project! I would like to contribute and help improve the project. However, I noticed that the repository currently lacks a contributing guide (CONTRIBUTING.md).

Adding a contributing guide would help new contributors better understand how they can contribute, follow the project's code style, and submit pull requests in a way that aligns with your preferences. It would also enhance the overall development process and collaboration among contributors.

Additionally, I would like to suggest opening a Discussions section in the repository. This could provide a space for community members to discuss ideas, ask questions, and share suggestions for the project's development.

I would also like to understand what types of contributions would be most helpful for you. For example, would adding new networks to the Hardhat configuration be useful?

I look forward to your consideration of this issue.

Best regards,
@yarscript