djangoアプリケーションにbootsrap4テンプレートを利用して画像を表示したい。

前提・実現したいこと

djangoで簡単なブログを作成しているのですが
bootsrap4のcard-titleに画像を表示させたい。

django:2.2
画像形式:HEIF(iphoneで撮影)からpngに変換

該当のソースコード


<!doctype html>
<html lang="ja">
  <head>
    <title>ブログ</title>
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

    <!-- Bootstrap CSS -->
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous">
  </head>
  <body>
    <nav class="navbar navbar-expand-lg bg-info navbar-dark">
      <a class="navbar-brand" href="#">ブログ</a>
      <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
        <span class="navbar-toggler-icon"></span>
      </button>

      <div class="collapse navbar-collapse" id="navbarSupportedContent">
        <ul class="navbar-nav mr-auto">
          <li class="nav-item active">
            <a class="nav-link" href="{% url 'blog:index' %}">Home</a>
          </li>
          {% if user.is_superuser %}
          <li class="nav-item">
            <a class="nav-link" href="{% url 'admin:index' %}">Link</a>
          </li>
          {% endif %}
        </ul>
        <form class="form-inline my-2 my-lg-0">
          <input class="form-control mr-sm-2" type="text" placeholder="Search" aria-label="Search">
          <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
        </form>
      </div>
    </nav>
#ここがbootsrap4のテンプレート
    <div class="card">
      <img class="card-img-top" src="/image/IMG_0975.png" alt="Card image cap">
      <div class="card-body"> Some more card content </div>
    </div>








    <div class="container">
      {% block content %}
      {% endblock %}
    </div>
    <footer class='bg-dark text-white text-center py-3'>
      <p>投稿者：</p>
    </footer>

    <!-- Optional JavaScript -->
    <!-- jQuery first, then Popper.js, then Bootstrap JS -->
    <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js" integrity="sha384-vFJXuSJphROIrBnz7yo7oB41mKfc8JzQZiCq4NCceLEaO4IHwicKwpJf9c9IpFgh" crossorigin="anonymous"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js" integrity="sha384-alpBpkh1PFOepccYVYDB4do5UnbKysX5WZXm3XxPqe5iKTfUKjNkCk9SaVuEZflJ" crossorigin="anonymous"></script>
  </body>
</html>