code: def set_note_footer(data, trigger):
          
          footer = ''
          if data.get('link'):
              provided_by = _('Provided by')
              provided_from = _('from')
              footer_from = "<br/><br/>{} <em>{}</em> {} <a href='{}'>{}</a>"
  
              footer = footer_from.format(
                  provided_by, trigger.trigger.description, provided_from,
                  data.get('link'), data.get('link'))
  
          return footer
docs: handle the footer of the note