The old post you refer to is “Syntax Highlighted Diffs”, Dec. 2014
However, nothing in the current GFM (GitHub Flavored Markdown) suggests this particular combination (of diff and syntax highlighting) is currently supported.
The old post you refer to is “Syntax Highlighted Diffs”, Dec. 2014
However, nothing in the current GFM (GitHub Flavored Markdown) suggests this particular combination (of diff and syntax highlighting) is currently supported.