Clean up code examples in README.md?

[ghost]

Sync it to actual code, and fix code formatting. Just for looks!

[yunap]

done. should probably do the same for demo page at: http://valleybazaar.org/#tracebox as well as example page https://github.com/yunap/traceit/blob/master/examples/index.html

[ghost]

Check the indents in a code block after "The trace constructor accepts the following traceOpt options object."

[yunap]

hmm, in "#example2"? it is an output of http://jsbeautifier.org/

[ghost]

Like this (too lazy for pull request):

$('#example2').trace({
    traceOpt: {
        traceCanvasPadding: 10,
        redrawSpeed: 3500,
        traceDivPref: "_wrap",
        traceCursor: 'pointer',
        traceOpt: {
            'stroke': 'yellow',
            'stroke-width': 5,
            'stroke-opacity': 1,
            'fill': 'none',
            'fill-opacity': 0,
            'zindex': 9999
        },
        isVisible: true,
        // will position relative to the document by default
        useRelativePositioning: false, 
        onHide: function () {
            console.log("onHide callback was invoked.")
        },
        onEndTrace: function () {
            console.log("onEndTrace callback was invoked.")
        },
        onClick: function (me) {
            me.options.shape.animate({
                opacity: 0
            }, 1000, function () {
                me.hideTrace();
            });
        }
    }
);