title: How to add a placeholder to a text_field_tag?
body: <p>I have the following line in my form:</p>
  
  <pre><code>= text_field_tag :mother_name, nil, id: 'mother_name_autocomplete', class: 'form-group form-control', autocomplete: 'off', data: {provide: 'typeahead'}
  </code></pre>
  
  <p>How can I add a placehodler to this field?</p>