docs: document analysis for Document.add_section()
docs: document analysis for Document.add_section()

tanyunshi/python-docx,guilhermebr/python-docx,SimplyAgree/python-docx,holli-holzer/python-docx,mohamedattahri/python-docx,python-openxml/python-docx,Nuos/python-docx,yurac/python-docx,eruffaldi/python-docx,jean/python-docx