code: def add_table(self, rows, cols):
          
          width = self.width if self.width is not None else Inches(1)
          table = super(_Cell, self).add_table(rows, cols, width)
          self.add_paragraph()
          return table
docs: Return a table newly added to this cell after any existing cell
          content, having *rows* rows and *cols* columns. An empty paragraph is
          added after the table because Word requires a paragraph element as
          the last element in every cell.