Simple angular repeat

I'm new to js/html/css etc., and trying to teach myself angular, but I'm stuck on something that seems simple.

When I load the page described below, I get the title and a one item list containing the text that I want angular to replace "{{e.someKey}}". What I'm looking for is two bullets - someValue1 and someValue2.

In index.html:

<!doctype html>
<html lang="en" ng-app="myfirstapp">
<head>
  <meta charset="utf-8">
  <title>my first app</title>
  <link rel="stylesheet" href="css/app.css">
  <link rel="stylesheet" href="css/bootstrap.css">
  <script src="lib/angular/angular.js"></script>
  <script src="js/app.js"></script>
  <script src="js/controllers.js"></script>
</head>
<body>
  <h1>My First App</h1>
  <div ng-controller="MyFirstAppController">
    <ul>
      <li ng-repeat="e in elementArray">
        <p>{{e.someKey}}</p>
      </li>
    </ul>
  </div>
</body>
</html>

The controller looks like this:

function MyFirstAppController($scope) {
    $scope.elementArray = [
        { someKey : 'someValue1', someOtherKey : 'someOtherValue1' },
        { someKey : 'someValue2', someOtherKey : 'someOtherValue2' }
    ];
}

I've tried loads of syntax tweaks to this, but I must be missing something more fundamental. Any ideas much appreciated!

Simply change it to:

<html lang="en" ng-app>

Here's a working version of the JSFiddle: http://jsfiddle.net/EgPYA/