- Add language indications to the code blocks.
- Use markdown syntax for the images
- Use real markdown headers (normalize headers and subheaders)
- Keep saving the images and resources within the chapter folder

- We added title and page_order metadata for pelican.

# Visual language

Some inspirations:
- <https://www.sqlite.org/lang_createtable.html>
- <https://macintoshnotes.files.wordpress.com/2013/09/meldscreenshot2.jpg>