update getting started guide link
update getting started guide link

asciidisco/grunt-qunit-istanbul,labertasch/grunt-contrib-qunit,asciidisco/grunt-qunit-istanbul,paladox/grunt-contrib-qunit,labertasch/grunt-contrib-qunit,paladox/grunt-contrib-qunit,gruntjs/grunt-contrib-qunit,gruntjs/grunt-contrib-qunit