Refurbish main function
Move some path utils to utils-path.rkt
Move some functions to utils-file.rkt
Oops, forgot to include utils-file.rkt
Move read-file to utils-file.rkt
Add test for read-file
Export functions from module generate-docs
Add script to render Markdown TOC
Remove redundant code from render-markdown
Merge branch 'rewrite-racket'