Link postcode to GeoHack page (fixes #78).
Link postcode to GeoHack page (fixes #78).

opencorato/mapit,opencorato/mapit,chris48s/mapit,opencorato/mapit,Code4SA/mapit,New-Bamboo/mapit,Sinar/mapit,Sinar/mapit,chris48s/mapit,New-Bamboo/mapit,Code4SA/mapit,Code4SA/mapit,chris48s/mapit