Nicer code callouts
- Make (or rather fake) code callout references in PDFs look consistent, even when they occur in prose rather than in the callout list
- Use callout icons in HTML
- only works for code and actual callout list
- (fake) callout references in prose look like
②
instead
- Fix wrong numbering in source
- (Didn't affect result, but caused warning
asciidoctor: WARNING: PewPew_Cheatsheet.adoc: line 54: callout list item index: expected 8, got 7
)
- (Didn't affect result, but caused warning