Example integration with Google Maps (or similar)

[adamhope]

Given how many teams want to use Google Maps we should provide an example or instructions on how to:

• Create a page with a map displaying your current location
• Create a page with a map displaying your current location and the route to a pre-defined destination

[adamhope]

I didn't realise someone had made a map page example, a tutorial outlining the features above would be enough.