Highlight deleted and added lines with GitHub Markdown

Question

How can I highlight deleted and added lines like in this comment? How do I make it look like a git diff?

Do I have to use HTML? Or is there some tricky syntax like strikethrough?

John C · Accepted Answer · 2014-05-29 09:02:48Z

13

That is done by using a code block with the "diff" syntax. The raw markdown would look something like this:

One small step for 
```diff
-man
+humankind
```

I've made a gist also that demonstrates the code (click "Raw" to view the markdown).

answered May 29, 2014 at 9:02

John C

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Thanks! Not knowing this had been bugging me for a long time. Out of curiosity, where is this documented? I couldn't find it anywhere.
– Ashitaka
May 29, 2014 at 13:43
1

You can see the complete list of languages they do syntax highlighting for here: github.com/github/linguist/blob/master/lib/linguist/… It is so long, diff was bound to be there!
– John C
May 30, 2014 at 13:26

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