Add related projects to documentation (#237)

* Added reference to alternative projects

* Updated npm dependencies

* Removed development branch from documentation build pipeline

* Removed unnecessary whitespace

* Reverted configuration changes in favor of separate PR

Author: evan-palmer

docs/docs/overview.mdx

@@ -79,3 +79,10 @@ Several vehicle models have been implemented and tested with Blue in
       integration of a small manipulator for intervention tasks.
    </Vehicle>
 </div>
+
+## Alternative projects
+
+If you find that Blue does not meet your needs, we recommend exploring the following alternative projects:
+
+- [Orca4](https://github.com/clydemcqueen/orca4)
+- [Marine Vehicle Packages (MVP)](https://github.com/uri-ocean-robotics/mvp_readme)