input: Write a python function to create and display a multiplication table of 7.
  assert create_table() == '7 x Table\n  7  |  14  |  21  |  28  |  35  |  42  |  49  |  56  |\n   7  |  14  |  21  |  28  |  35  |  42  |  49  |  56  |  63  |  70  |  77  |  84  |  91  |\n'
  assert create_table().count('|') == 16
output: def create_table():
      table = "7 x Table\n"
      for i in range(1, 15):
          table += f"  {7 * i}  |" if i <= 8 else f" {7 * i}  |"
      table += "\n"
      return table