HTML page for simple Microsoft Azure Cognitive Services example for image description

## cognitive.html
<!DOCTYPE html>
<html>
<head>
    <title>Cognitive Services Sample</title>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
    <script src="imageAnalysis.js"></script>
</head>

<body>
    <div>
        <!-- Insert text input for entering the subscription key, with id="subscriptionKey" -->
        <!-- Use a label and an input element -->
        <label for="subscriptionKey">Enter your cloud subscription key:</label>
        <input type="text" name="subscriptionKey" id="subscriptionKey" required />
    </div>

    <div>
        <!-- Insert text input for the image URL, with id="inputImage" -->
        <!-- Use a label and an input element -->
        <label for="inputImage">Enter image URL:</label>
        <input type="text" name="inputImage" id="inputImage" required />
    </div>

    <div>
        <!-- Insert a button that executes the JavaScript function analyzeButtonClick() when clicked -->
        <button onclick="analyzeButtonClick()">Analyze Image</button>
    </div>

    <div>
        <!-- Insert textarea with id="responseTextArea" for text output -->
        <textarea id="responseTextArea"></textarea>
    </div>
</body>
</html>