Update README.md

fixed a typo: $4%x -> %4$x
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acerjt 2024-09-24 16:17:03 +07:00 committed by GitHub
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@ -87,7 +87,7 @@ and you would read from the first to the forth param.
Or you could do:
```c
printf("$4%x")
printf("%4$x")
```
and read directly the forth.