chore: github md files

.github/ISSUE_TEMPLATE/bug-report.md

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+---
+name: Bug report
+about: Create a report to help improve openid-client
+
+---
+
+**Describe the bug**
+<!-- A clear and concise description of what the bug is. -->
+
+
+**To Reproduce**
+Issuer and Client configuration: (inline or gist) - Don't forget to redact your secrets.
+```js
+// Issuer configuration (issuer.metadata) and how it's constructed (discovery or manual?)
+{
+  // ...
+}
+// Client configuration (client.metadata) and how it's constructed (fromUri or manual?)
+{
+  // ...
+}
+```
+
+Steps to reproduce the behaviour:
+
+1.  
+2.  
+3.  
+
+**Expected behaviour**
+A clear and concise description of what you expected to happen.
+
+**Environment:**
+ - openid-client version: [e.g. v2.4.3]
+ - node version: [e.g. v8.9.0]
+
+**Additional context**
+Add any other context about the problem here.
+
+ - [ ] the bug is happening on latest openid-client too.
+ - [ ] i have searched the issues tracker on github for similar issues and couldn't find anything related.

.github/ISSUE_TEMPLATE/feature-request.md

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+---
+name: Feature request
+about: Suggest a feature for openid-client
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is.
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context about the problem here.
+
+ - [ ] i have searched the issues tracker on github for similar requests and couldn't find anything related.

CODE_OF_CONDUCT.md

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+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as contributors and maintainers
+pledge to making participation in our project and our community a harassment-free experience for
+everyone, regardless of age, body size, disability, ethnicity, gender identity and expression, level
+of experience, nationality, personal appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behaviour that contributes to creating a positive environment include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behaviour by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic address, without explicit
+  permission
+* Other conduct which could reasonably be considered inappropriate in a professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable behaviour and are
+expected to take appropriate and fair corrective action in response to any instances of unacceptable
+behaviour.
+
+Project maintainers 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, or
+to ban temporarily or permanently any contributor for other behaviours that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces when an individual is
+representing the project or its community. Examples of representing a project or community include
+using an official project e-mail address, posting via an official social media account, or acting as
+an appointed representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behaviour may be reported by contacting
+the project team at [email protected]. The project team will review and investigate all complaints,
+and will respond in a way that it deems appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident. Further details of
+specific enforcement policies may be posted separately.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, available at
+[http://contributor-covenant.org/version/1/4][version]
+
+[homepage]: http://contributor-covenant.org
+[version]: http://contributor-covenant.org/version/1/4/

CONTRIBUTING.md

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+# Contributing to openid-client
+
+Please note we have a [code of conduct][coc], please follow it in all your interactions with the
+project.
+
+When contributing to this project, please first discuss the change you wish to make via issue,
+email, or any other method with the owners of this project before proposing a change via a Pull
+Request. Use (and follow!) the appropriate [Issue Template][new-issue] to do so. The project
+promotes and follows current best practices in regards to the specifications it implements.
+A contribution that tries to implement something non-standard will most likely be dismissed.
+
+## Rules of the discussions
+
+Remember to be very clear and transparent when discussing any issue in the discussions boards. We
+ask that you keep the language to English and keep on track with the issue at hand. Lastly, please
+be respectful of our fellow contributors and keep an exemplary level of professionalism at all
+times.
+
+## Pull Request Checklist
+
+- Follow the eslint rules
+- Do not modify the eslint rules
+- File names must be snake_case.js
+- Add tests covering 100% of the library code you are adding or modifying
+- Existing tests must pass
+- Unless previously agreed upon (i.e. fixing a bug) all contributions must be backwards compatible
+- Follow [standard-version][standard-version] commit guidelines
+
+[coc]: https://github.com/panva/node-openid-client/blob/master/CODE_OF_CONDUCT.md
+[new-issue]: https://github.com/panva/node-openid-client/issues/new/choose
+[standard-version]: https://github.com/conventional-changelog/standard-version