- Minor doc fixes.
- Minor doc fixes.

toshka/python-docx,firebitsbr/python-docx,adnelson/docx-text-replacement,mouthwateringmedia/python-docx,adnelson/docx-text-replacement,mikemaccana/python-docx,psquickitprageet/python-docx,tomchipchase/python-docx