docs: Add link to the Melos GitHub action (#771)

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## Description

This just adds a link to the Melos GitHub action, so that more people
can find it.

## Type of Change

<!--- Put an `x` in all the boxes that apply: -->

- [ ] ✨ `feat` -- New feature (non-breaking change which adds
functionality)
- [ ] 🛠️ `fix` -- Bug fix (non-breaking change which fixes an issue)
- [ ] ❌ `!` -- Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] 🧹 `refactor` -- Code refactor
- [ ] ✅ `ci` -- Build configuration change
- [x] 📝 `docs` -- Documentation
- [ ] 🗑️ `chore` -- Chore

packages/melos/README.md

@@ -34,6 +34,13 @@ bases into multi-package repositories (sometimes called
 **Melos is a tool that optimizes the workflow around managing multi-package
 repositories with git and Pub.**
 
+## Github Action
+
+If you're planning on using Melos in your GitHub Actions workflows, you can use
+the [Melos Action](https://github.com/flame-engine/flame/tree/main/examples/assets/svgs)
+to run Melos commands, this action also supports automatic versioning and
+publishing directly from your workflows.
+
 ## What does a Melos workspace look like?
 
 A default file structure looks something like this: