message: updated LMBTR example
diff: @@ -65,7 +65,9 @@ mbtr = LMBTR(
  },
  flatten=False)
  -desc = mbtr.create(NaCl_conv, list_atom_indices=[6])
  +# Two equivalent ways
  +desc = mbtr.create(NaCl_conv, positions=[3]) # 1
  +# desc = mbtr.create(NaCl_conv, positions=[[0, 0, 0]]) # 2
  # Plot the results for the angle distribution
  