Convert docx files to markdown, rename files and add text to file names via batch processing / macros

About 400 Microsoft .docx files need to be converted to markdown (gfm, Github). This includes extracting media (images) from the Docx files and placing them in a media folder as well as renaming and adding text to file names.

These are the task details:

Task 1:
Convert about 400.docx files into gfm markdown
- each converted markdown file needs to be renamed
e.g. 11.11.3 Text Headers.docx needs to become 11.11.3Text_Headers.md
- each converted markdown file needs to be standalone and have its own media file (--extract-media command)
- each md file and media folder need to be in their own folder
e.g.
6.2.1Duplicate.md and its media are in folder 6_2_1
6.2.2Change_Title.md and its media are in folder 6_2_2

Task 2:
Table of Contents markdown file with about 400 chapters
- each chapter needs to have a text string added
e.g.
- [Duplicate](./6.2.1Duplicate.md) needs to become - [Duplicate](./6_2_1/6.2.1Duplicate.md)
- [Change Title](./6.2.2Change_Title.md) needs to become - [Change Title](./6_2_2/6.2.2Change_Title.md)