Add a SECURITY.md template

[Savio-Sou]

Problem

This library starter repo does not currently recommend any security related best practice.

With Noir and projects building with the language gradually moving into production, it would be great to add a SECURITY.md template in this repo to prompt library developers in establishing security policies and vulnerability reporting channels for their libraries.

Happy Case

• Add a SECURITY.md template
• Add a TODO in README.md as a prompt for library developers to complete their SECURITY.md

Additional Context

https://docs.github.com/en/code-security/getting-started/adding-a-security-policy-to-your-repository

Would you like to submit a PR for this Issue?

None