Add bouncer repo to transition tools group
Add section to show guidance we create
Add repos that help create good-looking services
Re-work FAQ-like format

We don't like FAQs.

https://gds.blog.gov.uk/2013/07/25/faqs-why-we-dont-have-them/
Merge pull request #7 from alphagov/improve-alphagov-github-io

Improve alphagov.github.io