Migrate docx/odt files to markdown

This looks like a great little project!

I migrated a two docs over to markdown so they're nice and readable on Github.

Usage.docx/md looks like it needs screenshots in it. I couldn't tell if they were or not because LibreOffice wasn't being nice to the file. 

I tired to preserve the formatting where possible with the files. If you don't like it, you're free to reject the whole thing. 

cheers!