More featured projects on the main page

[okdistribute]

Right now it only shows 2 featured projects on the main page. Let's add more to that list. Hopefully this is only a very tiny change in the JavaScript or HTML that places a limit on the number that are shown.

[RangerMauve]

Yeah! We just need to modify the featured flag to True in any of the projects YAML files. https://github.com/datproject/dat-foundation-website/blob/release/site/projects/beaker.md