Add comment into page
        :param page_id
        :param text

def add_comment(self, page_id, text):
        """
        Add comment into page
        :param page_id
        :param text
        """
        data = {'type': 'comment',
                'container': {'id': page_id, 'type': 'page', 'status': 'current'},
                'body': {'storage': {'value': text, 'representation': 'storage'}}}
        return self.post('rest/api/content/', data=data)