message: feat: add external collaboration tool links
diff: @@ -62,3 +62,10 @@ This marks your workspace as shared. When you open it, you can copy & share its
  > **A running Gitpod workspace really is your personal machine.**
  >
  > At present, this feature cannot be disabled. If this is something you are interested in, please [let us know in this issue](https://github.com/gitpod-io/gitpod/issues/6328).
  +
  +## External Collaboration Plugins
  +
  +With Gitpod you can also use the following third-party integrations for real-time collaboration:
  +
  +- [Code Together](https://www.codetogether.com/) - Works on VS Code Desktop, VS Code Browser, and via JetBrains or Eclipse.
  +- [Duckly](https://duckly.com/) - Works on VS Code Desktop and VS Code Browser.
  