Allow visitor to add a form to a formset

I have a form with one field for emails.

I would like to allow the visitor to add another email field. What do I need to do to allow the user to create another form?

#following the docs  https://docs.djangoproject.com/en/1.5/topics/forms/formsets/#adding-additional-fields-to-a-formset  #I don't see an add field button or instructions on how to create it    #forms.py  class BaseEmailFormSet(BaseFormSet):      def add_fields(self, form, index):          super(BaseEmailFormSet, self).add_fields(form, index)          form.fields["email"] = forms.CharField()      class AddMemberEmailForm(forms.Form):      email = forms.EmailField()    AddMemberEmailFormSet = formset_factory(AddMemberEmailForm,      formset=BaseEmailFormSet)    #views.py  from .forms import AddMemberEmailFormSet    email_formset = AddMemberEmailFormSet()    if request.method == 'POST':    email_formset = AddMemberEmailFormSet(request.POST, request.FILES)    if email_formset.is_valid():      print "valid!"    # pass 'email_formset': email_formset, to template    #Template  <form method="post">{% csrf_token %}    {{email_formset.management_form}}    <table>     {% for form in email_formset %}       {{form}}     {%endfor%}    </table>    <input type="submit" value="{% trans "Add Member Email" %}" name="add_member_email" class="btn btn-info" />  </form>

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