I'm pasting a text diff in standard format in a comment. I would like to highlight it as a diff (adds/removes different colors).
When viewing other files, I can do Highlight As -> Diff, but when pasting my block comment, nothing seems to happen if I do `lang=Diff`. Is there any way to make that block render as a diff.
Example:
```lang=diff
97c82,83
< a
---
> b
```