This removes unwanted characters from the filename of docx files, then uses w2m to convert it all to markdown, and prepones the needed YAML header also. This is for mass conversions of the files needed. It should work on any bash system with w2m installed.

organise.sh

for run in {1..10} ; do
  for file in *.docx ; do
    mv "${file}" "${file// _/ }"
    mv "${file}" "${file/_}"
    mv "${file}" "${file// }"
    mv "${file}" "${file//,}"
  done
done

for file in *.docx ; do
echo "---
title: ""
categories:
- features
- news
- entertainment
- sports
- opinion
author:
---
  " > "${file%%}.md"
done

for file in *.docx ; do
  w2m "${file}" >> "${file%%}.md"
done

for md in *.md ; do
  mv "${md}" 2017-11-15-${md%%}
done

for file in *.md ; do
  mv "${file}" "${file/.docx}"
done