add charset to example index.html
add charset to example index.html

UDST/vizicities,ThiagoGarciaAlves/vizicities,crusselsh/vizicities,crusselsh/vizicities,matthojo/vizicities,dyh333/vizicities,UDST/vizicities,GeoRanking/vizicities,marks/vizicities,mcanthony/vizicities,ThiagoGarciaAlves/vizicities,dyh333/vizicities,marks/vizicities,gelicia/vizicities,gelicia/vizicities,GeoRanking/vizicities,mcanthony/vizicities,vizicities/vizicities