index.html

<!DOCTYPE html>
<html lang="en" ng-app="app">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Hello world</title>
    <link rel="stylesheet" href="scss/helloWorldSection.module.scss">
    <link rel="icon" type="image/x-icon" href="image/hello.png">
</head>

<body> 
    <section class="helloWorldSection" ng-controller="HelloWorldCtrl">
        <h1 class="helloWorldSection__message">{{message}}</h1>
        <p class="helloWorldSection__message__initDoc" ng:init="greeting = ' Soy Adán!, '">{{message}}{{greeting + init}} mientras {{whereAreYouDoing}}</p>
    </section>
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.8.2/angular.min.js"></script>
    <script src="js/angular.js"></script>
</body>

</html>