Address review (#436)

Author: DerekMelchin

docs/pages/repositories.mdx

@@ -16,3 +16,8 @@ Please find the open source repositories on our [GitHub](https://github.com/dydx
 When contributing, please ensure your commits are verified. You can follow these steps to do so:
 * [Generate a new signing key](https://docs.github.com/en/authentication/managing-commit-signature-verification/generating-a-new-gpg-key) for work use and [turn on Vigilant Mode](https://docs.github.com/en/authentication/managing-commit-signature-verification/displaying-verification-statuses-for-all-of-your-commits)
 * [Tell Git about your GPG key](https://docs.github.com/en/authentication/managing-commit-signature-verification/telling-git-about-your-signing-key) and install `pinentry` if necessary
+
+### Third-Party Integrations
+
+* [LEAN / dYdX Exchange Plugin](https://github.com/QuantConnect/Lean.Brokerages.dYdX)
+