StartOut landing page on first react app render

[HlaKarki]

Instead of having React's default page from "create-react-app", we should tailor it to StartOut's

• Increases publicity
• Just very cool

[trentonyo]

Oooo yes I like this

[trentonyo]

• Increases publicity

Could direct to golden paths docs as well as the KPIs on our org homepage showing the productivity increase