<textarea rows="4" cols="50" name="message">Enter your message...</textarea><br>
<a href="{% url 'basket-order' %}?ordid={{ order_info.id }}">Done</a>
<form action="{URL}" method="POST">
<textarea rows="4" cols="50" name="message">Enter your message...</textarea><br>
<input type="hidden" value="{{ order_info.id }}">
<input type="submit" value="Отправить">
</form>