grid json bind

HTML

<script src="http://cdn.kendostatic.com/2012.1.322/js/kendo.all.min.js"></script>
<link rel="stylesheet" href="http://cdn.kendostatic.com/2012.1.322/styles/kendo.common.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2012.1.322/styles/kendo.metro.min.css">
<div id="grid1"></div>

JavaScript

var ds1 = new kendo.data.DataSource({
    transport: {
        read: {
            //using jsfiddle echo service to simulate JSON endpoint
            url: "https://api.github.com/users/simonjefford/",
            dataType: "json",
            type: "POST",
       
        }
    },
    schema: {
        
        model: {
            fields: {
                id: { type: "string" },
               
            }
        }            
    }
});


$("#grid1").kendoGrid({
    dataSource: ds1,
    height: 180,
    scrollable: {
        virtual: true
    },
    columns: [
        { field:"login", title: "codeLong" },
        { field:"id", title: "codeShort" },
        
                     
    ]
});