update comparison between io.js v8 and node 0.12 v8
update comparison between io.js v8 and node 0.12 v8

PR-URL: https://github.com/iojs/website/pull/98

laosb/iojs.github.io,LestaD/iojs.org-website,lucasconstantino/iojs.org,Fishrock123/iojs.org,phillipj/iojs.org,appleboy/website,benjamingr/website,ruiquelhas/website,deliciousinsights/iojs-website,lucasconstantino/iojs.org,Fishrock123/iojs.org,phillipj/iojs.org,nodejs/iojs.org,iojs-es/website,rstacruz/website,LestaD/iojs.org-website,krahman/website,mikeal/iojs.org,benjamingr/website,marocchino/iojs.org,krahman/website,stojanovic/iojs-website,rstacruz/website,marocchino/iojs.org,stojanovic/iojs-website,iojs-es/website,nodejs/iojs.org,diagramatics/iojs.org,deliciousinsights/iojs-website,rogeriopvl/website,Wirachmat/iojs.org,diagramatics/iojs.org,ruiquelhas/nodejs-website,Wirachmat/iojs.org,mikeal/iojs.org