Add 'Releasing' workflow to 'CONTRIBUTING.md'

CONTRIBUTING.md

@@ -2,27 +2,33 @@
 
 ## Things we will merge
 
-* Bugfixes
-* Performance improvements
-* Features that are likely to be useful to the majority of Liquid users
-* Documentation updates that are concise and likely to be useful to the majority of Liquid users
+- Bugfixes
+- Performance improvements
+- Features that are likely to be useful to the majority of Liquid users
+- Documentation updates that are concise and likely to be useful to the majority of Liquid users
 
 ## Things we won't merge
 
-* Code that introduces considerable performance degrations
-* Code that touches performance-critical parts of Liquid and comes without benchmarks
-* Features that are not important for most people (we want to keep the core Liquid code small and tidy)
-* Features that can easily be implemented on top of Liquid (for example as a custom filter or custom filesystem)
-* Code that does not include tests
-* Code that breaks existing tests
-* Documentation changes that are verbose, incorrect or not important to most people (we want to keep it simple and easy to understand)
+- Code that introduces considerable performance degrations
+- Code that touches performance-critical parts of Liquid and comes without benchmarks
+- Features that are not important for most people (we want to keep the core Liquid code small and tidy)
+- Features that can easily be implemented on top of Liquid (for example as a custom filter or custom filesystem)
+- Code that does not include tests
+- Code that breaks existing tests
+- Documentation changes that are verbose, incorrect or not important to most people (we want to keep it simple and easy to understand)
 
 ## Workflow
 
-* [Sign the CLA](https://cla.shopify.com/) if you haven't already
-* Fork the Liquid repository
-* Create a new branch in your fork
-  * For updating [Liquid documentation](https://shopify.github.io/liquid/), create it from `gh-pages` branch. (You can skip tests.)
-* If it makes sense, add tests for your code and/or run a performance benchmark
-* Make sure all tests pass (`bundle exec rake`)
-* Create a pull request
+- [Sign the CLA](https://cla.shopify.com/) if you haven't already
+- Fork the Liquid repository
+- Create a new branch in your fork
+  - For updating [Liquid documentation](https://shopify.github.io/liquid/), create it from `gh-pages` branch. (You can skip tests.)
+- If it makes sense, add tests for your code and/or run a performance benchmark
+- Make sure all tests pass (`bundle exec rake`)
+- Create a pull request
+
+## Releasing
+
+- Bump the version in `lib/liquid/version.rb` and merge it on `main`
+- Run `rake release` to create the new version tag and deploy the new version to RubyGems
+- Create a new release using the [GitHub UI](https://github.com/Shopify/liquid/releases/new)