docs: contribution guideline

.github/ISSUE_TEMPLATE/bug.yml

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+name: 🐛 Bug Report
+description: Submit a bug report to help us improve
+labels: [bug, triage]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        ## Please help us help you!
+
+        Before filing your issue, ask yourself:
+
+        - Has this bug already been reported?
+        - Is this clearly a Pact Python bug?
+        - Do I have basic ideas about where it goes wrong?
+        - Could it be because of something on my end?
+
+        **The GitHub issue tracker is not a support forum**. If you are not sure whether it could be on your end or within Pact Python, ask on [Slack](https://slack.pact.io).
+
+        Make the bug obvious. Ideally, we should be able to understand it without running any code.
+
+        Bugs are fixed faster if you include:
+        - A reproduction repository to replicate the issue
+        - Pact files
+        - Logs
+
+  - type: checkboxes
+    attributes:
+      label: Have you read the Contributing Guidelines on issues?
+      options:
+        - label: I have read the [Contributing Guidelines on issues](https://github.com/pact-foundation/pact-python/main/CONTRIBUTING.md#issues).
+          required: true
+
+  - type: checkboxes
+    attributes:
+      label: Prerequisites
+      description: Please check the following items before creating a issue. This way we know you've done these steps first.
+      options:
+        - label: I'm using the latest version of `pact-python`.
+          required: true
+        - label: I have read the console error message carefully (if applicable).
+
+  - type: textarea
+    attributes:
+      label: Description
+      description: A clear and concise description of what the bug is.
+    validations:
+      required: true
+
+  - type: input
+    attributes:
+      label: Reproducible demo
+      description: |
+        Paste the link to an example repo if possible, and exact instructions to reproduce the issue.
+
+        > **What happens if you skip this step?** Someone will read your bug report, and maybe will be able to help you, but it's unlikely that it will get much attention from the team. Eventually, the issue will likely get closed in favor of issues that have reproducible demos.
+
+        Please remember that:
+
+        - Issues without reproducible demos have a very low priority.
+        - The person fixing the bug would have to do that anyway. Please be respectful of their time.
+        - You might figure out the issues yourself as you work on extracting it.
+
+        Thanks for helping us help you!
+
+  - type: textarea
+    attributes:
+      label: Steps to reproduce
+      description: Write down the steps to reproduce the bug. You should start with a fresh installation, or your git repository linked above.
+      placeholder: |
+        1. Step 1...
+        2. Step 2...
+        3. Step 3...
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Expected behavior
+      description: How did you expect your project to behave? It's fine if you're not sure your understanding is correct. Write down what you thought would happen.
+      placeholder: Write what you thought would happen.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Actual behavior
+      description: |
+        Did something go wrong? Is something broken, or not behaving as you expected? Describe this section in detail. Don't only say "it doesn't work"! Please submit exhaustive and complete log messages, not just the final error message.
+
+        > Please read error messages carefully: it often tells you exactly what you are doing wrong.
+
+        If the logs are too long, you can paste them in a [gist](https://gist.github.com/) and link it here.
+      placeholder: |
+        Write what happened. Add full console log messages.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Your environment
+      description: Include as many relevant details about the environment you experienced the bug in.
+      value: |
+        - Public source code:
+        - Is this a consumer or provider issue? Do you have information about the other side?
+        - Pact Python version used: `pip list | grep pact`
+        - Information about your Pact broker (version, hosted where, pactflow, ...)
+        - Operating system and version (e.g. Ubuntu 20.04.2 LTS, macOS Ventura):
+
+  - type: checkboxes
+    attributes:
+      label: Self-service
+      description: |
+        If you feel like you could contribute to this issue, please check the box below. This would tell us and other people looking for contributions that someone's working on it.
+
+        If you do check this box, please send a pull request. If circumstances change and you can't work on it anymore, let us know and we can re-assign it.
+      options:
+        - label: I'd be willing to fix this bug myself.

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false
+contact_links:
+  - name: 🚀 Feature request
+    url: https://pact.canny.io
+    about: The Canny board to send us feature requests, vote and measure the interest of users. Useful to submit a feature request when you have an idea but no concrete API design proposal.
+  - name: ❓ Simple question - Slack chat
+    url: https://slack.pact.io
+    about: If you have a simple question, or want to discuss a feature request, join our Slack chat.
+  - name: ❓ Simple question - Stack Overflow
+    url: https://stackoverflow.com/questions/tagged/pact
+    about: The GitHub issue tracker is not for technical support. Please use Stack Overflow, and ask the community for help.
+  - name: ❓ Advanced question - GitHub Discussions
+    url: https://github.com/pact-foundation/pact-python/discussions
+    about: Use GitHub Discussions for advanced and unanswered questions only, requiring a maintainer's answer. Make sure the question wasn't already asked.

.github/ISSUE_TEMPLATE/feature.yml

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+name: 💅 Feature design / RFC
+description: Submit a detailed feature request with a concrete proposal
+labels: [feature, triage]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Important things:
+
+        - We expect the feature request to be detailed.
+        - The request does not have to be perfect, we'll discuss it and fix it if needed.
+        - For a more "casual" feature request, consider using Canny instead: https://pact.canny.io.
+
+  - type: checkboxes
+    attributes:
+      label: Have you read the Contributing Guidelines on issues?
+      options:
+        - label: I have read the [Contributing Guidelines on issues](https://github.com/pact-foundation/pact-python/blob/main/CONTRIBUTING.md#issues).
+          required: true
+
+  - type: textarea
+    attributes:
+      label: Description
+      description: A clear and concise description of what the feature is.
+    validations:
+      required: true
+
+  - type: input
+    attributes:
+      label: Has this been requested on Canny?
+      description: Please post the [Canny](https://pact.canny.io) link, it is helpful to see how much interest there is for this feature.
+
+  - type: textarea
+    attributes:
+      label: Motivation
+      description: Please outline the motivation for the proposal and why it should be implemented. Has this been requested by a lot of users?
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Have you tried building it?
+      description: |
+        Please explain how you tried to build the feature by yourself, and how successful it was. If you haven't tried, that's alright.
+
+  - type: checkboxes
+    attributes:
+      label: Self-service
+      description: |
+        If you answered the question above as "no" because you feel like you could contribute directly to our repo, please check the box below. This would tell us and other people looking for contributions that someone's working on it.
+
+        If you do check this box, please send a pull request. If circumstances change and you can't work on it anymore, let us know and we can re-assign it.
+      options:
+        - label: I'd be willing to contribute this feature to Docusaurus myself.

.github/PULL_REQUEST_TEMPLATE.md

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+<!--
+Thank you for sending the PR! We appreciate you spending the time to work on these changes.
+You can learn more about contributing to Pact-python here: https://github.com/pact-foundation/pact-python/blob/main/CONTRIBUTING.md
+
+Happy contributing!
+-->
+
+## :airplane: Pre-flight checklist
+
+-   [ ] I have read the [Contributing Guidelines on pull requests](https://github.com/pact-foundation/pact-python/blob/main/CONTRIBUTING.md#pull-requests).
+-   [ ] **If this is a code change**: I have written unit tests and/or added dogfooding pages to fully verify the new behavior.
+-   [ ] **If this is a new API or substantial change**: the PR has an accompanying issue (closes #0000) and the maintainers have approved on my working plan.
+
+## :memo: Summary
+
+<!-- Help us understand the PR at a high level. What changes is it proposing? -->
+
+## :rotating_light: Breaking Changes
+
+<!-- Does this PR include any breaking changes? If not, feel free to delete this section. If so, please detail:
+
+-  What is the breaking change?
+-  Why is the breaking change necessary?
+-  What steps should a user take in order to migrate from the old behavior to the new one?
+-->
+
+## :fire: Motivation
+
+<!-- Help us understand your motivation by explaining why you decided to make this change. Does this fix a bug? Does it close an issue? -->
+
+## :hammer: Test Plan
+
+<!-- Write your test plan here. If you changed any code, please provide us with clear instructions on how you verified your changes work. -->
+
+## :link: Related issues/PRs
+
+<!-- If you haven't already, link to issues/PRs that are related to this change. This helps us develop the context and keep a rich repo history. If this PR is a continuation of a past PR's work, link to that PR. If the PR addresses part of the problem in a meta-issue, mention that issue. -->