fix a11y error in help modal

lms/templates/help_modal.html

@@ -61,7 +61,7 @@ discussion_link = get_discussion_link(course) if course else None
       <div id="feedback_error" class="modal-form-error" tabindex="-1"></div>
 % if not user.is_authenticated():
       <label data-field="name" for="feedback_form_name">${_('Name*')}</label>
-      <input name="name" type="text" id="feedback_form_email" aria-required="true">
+      <input name="name" type="text" id="feedback_form_name" aria-required="true">
       <label data-field="email" for="feedback_form_email">${_('E-mail*')}</label>
       <input name="email" type="text" id="feedback_form_email" aria-required="true">
 % endif