Invalid html in testproject template

[minusf]

https://github.com/coderedcorp/wagtail-flexible-forms/blob/main/testproject/home/templates/home/stream_form_page.html#L51-L58:

      {% if step != steps|first %}
      <a class="btn btn-outline" href="{{page.url}}?step={{step.index}}">
        < Previous
      </a>
      {% endif %}
      <button class="btn" type="submit">
        {% if steps|last == step %}Submit{% else %}Next >{% endif %}
      </button>

The "Previous" and "Next" links could use some html entities :)