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create code fences with backticks ` or tildes ~
```
like so
``` -
add language identifier to highlight code
```python
def function(foo):
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lang-bash
[ ]*to match just spaces, a simple ` *` would do. Of course[ \t]*would probably be better, to catch tabs, too.awk, but I choose it, because you understood that/new/nameis a dummy name and will actually be a variable, and you provided a solution with that in mind.