Improve contribution guidelines + PR template (#65)

Author: markmur

.github/CONTRIBUTING.md

@@ -1,12 +1,14 @@
 # Contributing
 
-The following is a set of guidelines for contributing to the project. Please take a moment to read through them before submitting your first PR.
+The following is a set of guidelines for contributing to the project. Please
+take a moment to read through them before submitting your first PR.
 
 ## Code of Conduct
 
-This project and everyone participating in it are governed by the [Code of Conduct](/.github/CODE_OF_CONDUCT.md).
-By participating, you are expected to uphold this code. Please report unacceptable
-behavior to [[email protected]](mailto:[email protected]).
+This project and everyone participating in it are governed by the
+[Code of Conduct](/.github/CODE_OF_CONDUCT.md). By participating, you are
+expected to uphold this code. Please report unacceptable behavior to
+[[email protected]](mailto:[email protected]).
 
 ## Welcomed Contributions
 
@@ -24,7 +26,9 @@ behavior to [[email protected]](mailto:[email protected]).
 
 ## Proposing Features
 
-When in doubt about whether we will be interested in including a new feature in this project, please open an issue to propose the feature so we can confirm the feature should be in scope for the project before it is implemented.
+When in doubt about whether we will be interested in including a new feature in
+this project, please open an issue to propose the feature so we can confirm the
+feature should be in scope for the project before it is implemented.
 
 ## How To Contribute
 
@@ -34,4 +38,30 @@ When in doubt about whether we will be interested in including a new feature in
 4. Verify the changes locally (e.g. via the sample app)
 5. Commit your changes and push
 6. Ensure all checks (e.g. tests) are passing in GitHub
-7. Create a new pull request with a detailed description of what is changing and why
+7. Create a new pull request with a detailed description of what is changing and
+   why
+
+## Releasing a new version
+
+Open a pull request with the following changes:
+
+1. Bump the
+   [package version](https://github.com/Shopify/checkout-sheet-kit-react-native/blob/main/modules/%40shopify/checkout-sheet-kit/package.json#L4)
+   of the `@shopify/checkout-sheet-kit` module.
+2. Add an entry to the top of the [CHANGELOG](../CHANGELOG.md)
+
+Once you have merged a pull request with these changes, you will be ready to
+publish a new version.
+
+To do so, navigate to
+https://github.com/Shopify/checkout-sheet-kit-react-native/releases and click
+"Draft a new release" then complete the following steps:
+
+1. Create a tag for the new version
+2. Use the same tag as the name for the version
+3. Document a full list of changes since the previous release, tagging merged
+   pull requests where applicable, in the description box.
+4. Check "Set as the latest release".
+5. When ready, click "Publish release". This will kickstart the
+   [CI process](https://github.com/Shopify/checkout-sheet-kit-react-native/actions/workflows/publish.yml)
+   to publish a new version of the NPM package.

.github/pull_request_template.md

@@ -1,11 +1,31 @@
-### What are you trying to accomplish?
+### What changes are you making?
 
-<!-- Optional: add instructions to describe how to test -->
+<!-- Please describe why you are making these changes -->
 
-### Before you deploy
+### How to test
 
-- [ ] I have added tests to support my implementation
-- [ ] I have read and agree with the contributing documentation [readme](/.github/CONTRIBUTING.md)
-- [ ] I have read and agree with the code of conduct documentation [readme](/.github/CODE_OF_CONDUCT.md)
-- [ ] I have updated any documentation related to these changes.
-- [ ] I have updated the [README](/README.md) (if applicable).
+<!-- Please outline the steps to test your changes -->
+
+---
+
+### PR Checklist
+
+> [!IMPORTANT]
+>
+> - [ ] I've added tests to support my implementation
+> - [ ] I have read and agree with the [Contribution Guidelines](https://github.com/shopify/checkout-sheet-kit-react-native/blob/main/.github/CONTRIBUTING.md).
+> - [ ] I have read and agree with the [Code of Conduct](https://github.com/shopify/checkout-sheet-kit-react-native/blob/main/.github/CODE_OF_CONDUCT.md).
+> - [ ] I've updated the [README](https://github.com/shopify/checkout-sheet-kit-react-native).
+> - [ ] I've updated any documentation related to these changes.
+
+---
+
+<details>
+<summary>Checklist for releasing a new version</summary>
+
+- [ ] I have bumped the version number in the [`package.json` file](https://github.com/Shopify/checkout-sheet-kit-react-native/blob/main/modules/%40shopify/checkout-sheet-kit/package.json#L4).
+- [ ] I have added a [Changelog](./CHANGELOG.md) entry.
+</details>
+
+> [!TIP] 
+> See the [Contributing documentation](./CONTRIBUTING.md#releasing-a-new-version) for instructions on how to publish a new version of the library.