chore(repo) - add contributing guide, code of conduct, issue and pr t…

…emplates

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,45 @@
+---
+name: Bug report
+about: Report a bug in MACI
+---
+
+# Prerequisites
+
+Please answer the following questions for yourself before submitting an issue.
+
+-   [ ] I am running the latest version
+-   [ ] I checked the documentation and found no answer
+-   [ ] I checked to make sure that this issue has not already been filed
+
+# Expected Behavior
+
+Please describe the behavior you are expecting
+
+# Current Behavior
+
+What is the current behavior?
+
+# Failure Information
+
+Please help provide information about the failure if this is a bug. If it is not a bug, please remove the rest of this template.
+
+## Steps to Reproduce
+
+Please provide detailed steps for reproducing the issue.
+
+1. step 1
+2. step 2
+3. you get it...
+
+## Context
+
+Please provide any relevant information about your setup. This is important in case the issue is not reproducible except for under certain conditions.
+
+-   Firmware Version:
+-   Operating System:
+-   SDK version:
+-   Toolchain version:
+
+## Failure Logs
+
+Please include any relevant log snippets or files here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for MACI
+---
+
+# Prerequisites
+
+Please answer the following question for yourself before submitting a feature request.
+
+-   [ ] I checked to make sure that this request has not already been filed
+
+# Motivation
+
+Is your feature request related to a specific problem? Is it just a crazy idea? Tell us about it!
+
+# Details
+
+Please describe your feature request in detail.
+
+Make sure that you have reviewed [MACI's Contributor Guidelines](https://github.com/privacy-scaling-explorations/maci/blob/dev/CONTRIBUTING.md)

.github/PULL_REQUEST_TEMPLATE/pull_request_template.md

@@ -0,0 +1,23 @@
+# MACI Pull Request Template
+
+## Title
+
+[Short description of the pull request]
+
+## Description
+
+Please provide a detailed description of the pull request you are opening.
+
+## Additional Notes
+
+If there are any additional notes, requirements or special instructions related to this ceremony, please specify them here.
+
+## Related issue(s)
+
+Please list here with closing keywords any issues that this pull request is related to (fix #$ISSUE_NUMBER).
+
+## Confirmation
+
+ - [ ] I have read and understood MACI's guidelines and requirements.
+ - [ ] I have read MACI's [GitHub processes](https://github.com/privacy-scaling-explorations/maci/discussions/847) documentation.
+ - [ ] I have read MACI's [testing guide](https://maci.pse.dev/docs/testing).

CODE_OF_CONDUCT.md

@@ -0,0 +1,86 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+We as members, contributors, and leaders pledge to make participation in our community a harassment-free experience for everyone, regardless of age, body size, visible or invisible disability, ethnicity, sex characteristics, gender identity and expression, level of experience, education, socio-economic status, nationality, personal appearance, race, religion, or sexual identity and orientation.
+
+We pledge to act and interact in ways that contribute to an open, welcoming, diverse, inclusive, and healthy community.
+
+## Our Standards
+
+Examples of behavior that contributes to a positive environment for our community include:
+
+-   Demonstrating empathy and kindness toward other people
+-   Being respectful of differing opinions, viewpoints, and experiences
+-   Giving and gracefully accepting constructive feedback
+-   Accepting responsibility and apologizing to those affected by our mistakes,
+    and learning from the experience
+-   Focusing on what is best not just for us as individuals, but for the
+    overall community
+
+Examples of unacceptable behavior include:
+
+-   The use of sexualized language or imagery, and sexual attention or
+    advances of any kind
+-   Trolling, insulting or derogatory comments, and personal or political attacks
+-   Public or private harassment
+-   Publishing others' private information, such as a physical or email
+    address, without their explicit permission
+-   Other conduct which could reasonably be considered inappropriate in a
+    professional setting
+
+## Enforcement Responsibilities
+
+Community leaders are responsible for clarifying and enforcing our standards of acceptable behavior and will take appropriate and fair corrective action in response to any behavior that they deem inappropriate, threatening, offensive, or harmful.
+
+Community leaders have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, and will communicate reasons for moderation decisions when appropriate.
+
+## Scope
+
+This Code of Conduct applies within all community spaces, and also applies when an individual is officially representing the community in public spaces. Examples of representing our community include using an official e-mail address, posting via an official social media account, or acting as an appointed representative at an online or offline event.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported to the community leaders responsible for enforcement.
+All complaints will be reviewed and investigated promptly and fairly.
+
+All community leaders are obligated to respect the privacy and security of the reporter of any incident.
+
+## Enforcement Guidelines
+
+Community leaders will follow these Community Impact Guidelines in determining the consequences for any action they deem in violation of this Code of Conduct:
+
+### 1. Correction
+
+**Community Impact**: Use of inappropriate language or other behavior deemed unprofessional or unwelcome in the community.
+
+**Consequence**: A private, written warning from community leaders, providing clarity around the nature of the violation and an explanation of why the behavior was inappropriate. A public apology may be requested.
+
+### 2. Warning
+
+**Community Impact**: A violation through a single incident or series of actions.
+
+**Consequence**: A warning with consequences for continued behavior. No interaction with the people involved, including unsolicited interaction with those enforcing the Code of Conduct, for a specified period of time. This includes avoiding interactions in community spaces as well as external channels like social media. Violating these terms may lead to a temporary or permanent ban.
+
+### 3. Temporary Ban
+
+**Community Impact**: A serious violation of community standards, including sustained inappropriate behavior.
+
+**Consequence**: A temporary ban from any sort of interaction or public communication with the community for a specified period of time. No public or private interaction with the people involved, including unsolicited interaction with those enforcing the Code of Conduct, is allowed during this period. Violating these terms may lead to a permanent ban.
+
+### 4. Permanent Ban
+
+**Community Impact**: Demonstrating a pattern of violation of community standards, including sustained inappropriate behavior, harassment of an individual, or aggression toward or disparagement of classes of individuals.
+
+**Consequence**: A permanent ban from any sort of public interaction within the community.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 2.0, available at
+https://www.contributor-covenant.org/version/2/0/code_of_conduct.html.
+
+Community Impact Guidelines were inspired by [Mozilla's code of conduct enforcement ladder](https://github.com/mozilla/diversity).
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see the FAQ at https://www.contributor-covenant.org/faq. Translations are available at https://www.contributor-covenant.org/translations.

CONTRIBUTING.md

@@ -0,0 +1,116 @@
+# Contributing
+
+:tada: Thank you for being interested in contributing to MACI! :tada:
+
+Feel welcome and read the following sections in order to know how to ask questions and how to work on something.
+
+All members of our community are expected to follow our [Code of Conduct](/CODE_OF_CONDUCT.md). Please make sure you are welcoming and friendly in all of our spaces.
+
+We're really glad you're reading this, because we need volunteer developers to help this project come to fruition. There is a lot we want to achieve, and this can only be made possible thanks to your support. 👏
+
+## Issues
+
+The best way to contribute to our projects is by opening a [new issue](https://github.com/privacy-scaling-explorations/maci/issues) or tackling one of the issues listed [here](https://github.com/privacy-scaling-explorations/maci/contribute).
+
+## Pull Requests
+
+Pull requests are great if you want to add a feature or fix a bug. Here's a quick guide:
+
+1. Ensure there is an issue tracking your work.
+
+2. Fork the repo.
+
+3. Run the tests. We only take pull requests with passing tests.
+
+4. Add a test for your change. Only refactoring and documentation changes require no new tests.
+
+5. Make sure to check out the [Style Guide](/CONTRIBUTING#style-guide) and ensure that your code complies with the rules.
+
+6. Make sure you read our [GitHub processes](https://github.com/privacy-scaling-explorations/maci/discussions/847) documentation.
+
+7. Make the test pass.
+
+8. Commit your changes.
+
+9. Push to your fork and submit a pull request on our `dev` branch. Please provide us with some explanation of why you made the changes you made. For new features make sure to explain a standard use case to us. 
+
+10. Link any issues that the PR is addressing as described in our processes documentation.
+
+## CI (Github Actions) Tests
+
+We use GitHub Actions to test each PR before it is merged.
+
+When you submit your PR (or later change that code), a CI build will automatically be kicked off. A note will be added to the PR, and will indicate the current status of the build.
+
+Please refer to our [testing guide](https://maci.pse.dev/docs/testing) for more details on how we run tests across the monorepo.
+
+## Style Guide
+
+### Code rules
+
+We always use ESLint and Prettier. To check that your code follows the rules, simply run the npm script `npm run lint` and `npm run prettier`. When committing, `eslint` is run automatically, so you will be required to fix any error before being able to push a commit. We highly recommend to tackle warnings as well.
+
+### Commits rules
+
+For commits it is recommended to use [Conventional Commits](https://www.conventionalcommits.org). You may install the [commitizen](https://commitizen-tools.github.io/commitizen/) tool to help you with this.
+
+Each commit message consists of a **header**, a **body** and a **footer**. The **header** has a special format that includes a **type**, a **scope** and a **subject**:
+
+    <type>(<scope>): <subject>
+    <BLANK LINE>
+    <body>
+    <BLANK LINE>
+    <footer>
+
+The **header** is mandatory and the **scope** of the header must contain the name of the component you are working on.
+
+#### Type
+
+The type must be one of the following:
+
+-   feat: A new feature
+-   fix: A bug fix
+-   docs: Documentation only changes
+-   style: Changes that do not affect the meaning of the code (white-space, formatting, missing semi-colons, etc)
+-   refactor: A code change that neither fixes a bug nor adds a feature (improvements of the code structure)
+-   perf: A code change that improves the performance
+-   test: Adding missing or correcting existing tests
+-   build: Changes that affect the build system or external dependencies (example scopes: gulp, npm)
+-   ci: Changes to CI configuration files and scripts (example scopes: travis, circle)
+-   chore: Other changes that don't modify src or test files
+-   revert: Reverts a previous commit
+
+#### Scope
+
+The scope should be the name of the feature or package modified (as perceived by the person reading the changelog generated from commit messages).
+
+#### Subject
+
+The subject contains a succinct description of the change:
+
+-   Use the imperative, present tense: "change" not "changed" nor "changes"
+-   Don't capitalize the first letter
+-   No dot (.) at the end
+
+#### Body
+
+Just as in the subject, use the imperative, present tense: "change" not "changed" nor "changes". The body should include the motivation for the change and contrast this with previous behavior.
+
+### Branch rules
+
+-   There must be a `main` branch.
+-   Avoid long descriptive names for long-lived branches.
+-   Use kebab-case (no CamelCase).
+-   Use grouping tokens (words) at the beginning of your branch names (in a similar way to the `type` of commit).
+-   Define and use short lead tokens to differentiate branches in a way that is meaningful to your workflow.
+-   Use slashes to separate parts of your branch names.
+-   Remove branch after merge if it is not important.
+
+Examples:
+
+```bash
+git branch -b docs/readme
+git branch -b test/a-feature
+git branch -b feat/sidebar
+git branch -b fix/b-feature
+```

SECURITY.md

@@ -0,0 +1,32 @@
+# Security Policy
+
+Security vulnerabilities should be disclosed to the project maintainers through [Discord], or alternatively via telegram.
+
+[Discord]: https://discord.com/invite/bTdZfpc69U
+
+## Bug Bounty
+
+At this time there is no active bug bounty for MACI.
+
+## Security Patches
+
+Security vulnerabilities will be patched as soon as responsibly possible, and published as an advisory on this repository (see [advisories]) and on the affected npm packages.
+
+[advisories]: https://github.com/privacy-scaling-explorations/maci/security/advisories
+
+### Supported Versions
+
+Security patches will be released for the latest minor of a given major release. For example, if an issue is found in versions >=4.6.0 and the latest is 4.8.0, the patch will be released only in version 4.8.1.
+
+Only critical severity bug fixes will be backported to past major releases.
+
+| Version | Critical security fixes | Other security fixes |
+| ------- | ----------------------- | -------------------- |
+| 4.x     | :white_check_mark:      | :white_check_mark:   |
+| 3.4     | :white_check_mark:      | :x:                  |
+| 2.5     | :white_check_mark:      | :x:                  |
+| < 2.0   | :x:                     | :x:                  |
+
+## Legal
+
+MACI is made available under the MIT License, which disclaims all warranties in relation to the project and which limits the liability of those that contribute and maintain the project, including the Ethereum Foundation (EF). You are solely responsible for any use of MACI and you assume all risks associated with any such use. This Security Policy in no way evidences or represents an on-going duty by any contributor, including the EF, to correct any flaws or alert you to all or any of the potential risks of utilizing the project.