docs: add get involved page (#2744)

packages/documentation/src/content/docs/reference/get-involved.md

@@ -0,0 +1,26 @@
+---
+title: Get involved
+---
+
+## Participation
+
+- Begin a [new discussion or contribute to existing discussions](https://github.com/interledger/rafiki/discussions) in the Rafiki GitHub repo.
+- Join the [interledger.slack.com](interledger.slack.com) workspace and ask any questions you have in the #rafiki channel.
+- Try [running the system locally](https://rafiki.dev/playground/overview/) and ask any questions you have in the #rafiki Slack channel.
+- For more details about spec contributions and development, visit [contributing.md](https://github.com/interledger/rafiki/blob/main/.github/contributing.md).
+
+## Coding
+
+- [Contribute](https://github.com/interledger/rafiki) to Rafiki coding or testing.
+
+## Community and hackathons
+
+- Join us at the [Interledger Summit](https://interledger.org/summit) and participate in our annual hackathon.
+- Organize your own hackathons, coding sprints, and workshops both online and offline. Run campaigns and encourage participants to develop, collaborate on, and test projects.
+
+## Documentation
+
+- Contribute to the docs by suggesting additions and improvements.
+- Create tutorials and guides to help others in the community work with Rafiki.
+
+Review our [contribution guide](https://github.com/interledger/rafiki/blob/main/.github/contributing.md) for details.