Update the marketing site with new Bronze plan

Description

We are in the process of introducing paid subscriptions on gitlab.com. To achieve this, we are adding a new Bronze plan, and remove the current Bronze Support plan.

The current marketing page (https://about.gitlab.com/gitlab-com/)

• has a content that is hard to read
• has the pricing information lost in the middle of the content
• looks amateurish, while we want to convey a notion of seriousness with this new paid plan.

We need to refresh the page accordingly.

Proposal

• UX: propose an updated design
  • Be more SAAS centric in the way we present the page.
  • Put the two plans higher on the page
  • Try to group questions and concerns together by adding a FAQ
• Front end: implement the design

Wireframe