Add lat/long example

[henare]

On the home page the site asks you to enter a lat/long but they're hard to remember so for instant gratification we should add a clickable example lat/long.

[dracos]

What it could also do is suggest you visit any co-ordinates page on Wikipedia, e.g. http://tools.wmflabs.org/geohack/geohack.php?pagename=Riga&params=56_56_56_N_24_6_23_E_type:city(693064)_region:LV and click the "MapIt" link on that page :)

[dracos]

Oh, and there is a clickable link just a bit further down, under the /point instructions, "Example of areas containing (47.366667,8.55)" - so that could just be copied further up.

[henare]

👍