Table autofit default value

[buhtz]

python-docx/docx/table.py

Lines 61 to 73 in 36cac78

	@property
	def autofit(self):
	"""
	|True| if column widths can be automatically adjusted to improve the
	fit of cell contents. |False| if table layout is fixed. Column widths
	are adjusted in either case if total column width exceeds page width.
	Read/write boolean.
	"""
	return self._tblPr.autofit
	@autofit.setter
	def autofit(self, value):
	self._tblPr.autofit = value

I tried to understand the code to create a PR. But I couldn't figureing out how the default value of autofit is set.
The default value (True?) should be mentioned in the docstring.