Direct link off the web landing page to the Pi-Image on GitHub

[jjsenay]

I think there needs to be a direct link off the web landing page to the Pi-Image on GitHub. If a new/interested user wants to try Ambianic Edge, Finding their way via the GitHub link would confuse them. Maybe on the landing page inform the user what they need to have as far as hardware and then a link that takes them directly to https://github.com/ambianic/ambianic-rpi-image#readme