Changes to homepage text

[heathergreerklein]

This issue is focused on three text sections of the samvera.org homepage:

• THE SAMVERA COMMUNITY - replace the text in this box with the following ("Get Started" button remains untouched)
  Samvera is a vibrant, highly active community including more than 30 Partners who formally support our work and development. Working together, members of the Samvera Community create sustainable repository solutions based on a common infrastructure, allowing the flexibility to tailor solutions to local demands and workflows. This provides the foundation for both highly customized, extensible repositories as well as turn-key solutions that allow adopters to get up and running quickly.

• BENEFITS OF SAMVERA - completely remove this box and text

• HOW IT WORKS - completely remove this box and text