Add the Summary and Benefits sections

[simonweniger]

Bounty

Add the two section which show the summary and a list with all the benefits.

Scope

• Add one new section
• Add the benefits and the summary

Deliverables

PR

Gain for the project

Roles

bounty gardener: @cyan-one / -
bounty worker: @cyan-one / 90%
bounty reviewer: name / share