set default option to angularjs select

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<html lang="ru-RU"><head>
<title>Hello There</title>
<meta charset="UTF-8">
</head>
<body ng-app="phamApp" ng-controller="MainCtrl">
    <div class="container">
        <br />
        <br />
        <div class="row">
            <div class="col-md-6 col-md-push-3">
                <label for="myHeroes"><h2>Superheroes</h2></label>
                <superhero></superhero>
            </div>
        </div>
    </div>
</body>
​
</html>
  
    